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Finding the Fourth Proportional to 1,902.76, 2,627.46 and 1,840.76

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Solution

The fourth proportional to 1,902.76, 2,627.46 and 1,840.76 is: 2,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.76 : 2,627.46 = 1,840.76 : x
  2. Step 2: Convert to fraction form
    1,902.76/2,627.46 = 1,840.76/x
  3. Step 3: Cross multiply
    1,902.76x = 2,627.46 × 1,840.76
  4. Step 4: Simplify right side
    1,902.76x = 4,836,523.27
  5. Step 5: Solve for x
    x = 4,836,523.27/1,902.76
  6. Step 6: Final answer
    x = 2,541.85

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Half scale
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Double scale
Find fourth proportional to 1,903.76, 2,628.84 and 1,841.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.