Home / 7,081.73-10,622.58-1,887.60

Finding the Fourth Proportional to 7,081.73, 10,622.58 and 1,887.60

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Solution

The fourth proportional to 7,081.73, 10,622.58 and 1,887.60 is: 2,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.73 : 10,622.58 = 1,887.60 : x
  2. Step 2: Convert to fraction form
    7,081.73/10,622.58 = 1,887.60/x
  3. Step 3: Cross multiply
    7,081.73x = 10,622.58 × 1,887.60
  4. Step 4: Simplify right side
    7,081.73x = 20,051,214.76
  5. Step 5: Solve for x
    x = 20,051,214.76/7,081.73
  6. Step 6: Final answer
    x = 2,831.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.