Home / 2,281.92-3,138.60-1,880.76

Finding the Fourth Proportional to 2,281.92, 3,138.60 and 1,880.76

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Solution

The fourth proportional to 2,281.92, 3,138.60 and 1,880.76 is: 2,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.92 : 3,138.60 = 1,880.76 : x
  2. Step 2: Convert to fraction form
    2,281.92/3,138.60 = 1,880.76/x
  3. Step 3: Cross multiply
    2,281.92x = 3,138.60 × 1,880.76
  4. Step 4: Simplify right side
    2,281.92x = 5,902,953.34
  5. Step 5: Solve for x
    x = 5,902,953.34/2,281.92
  6. Step 6: Final answer
    x = 2,586.84

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Half scale
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Double scale
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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.