Home / 7,691.19-10,612.54-4,287.45

Finding the Fourth Proportional to 7,691.19, 10,612.54 and 4,287.45

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Solution

The fourth proportional to 7,691.19, 10,612.54 and 4,287.45 is: 5,915.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.19 : 10,612.54 = 4,287.45 : x
  2. Step 2: Convert to fraction form
    7,691.19/10,612.54 = 4,287.45/x
  3. Step 3: Cross multiply
    7,691.19x = 10,612.54 × 4,287.45
  4. Step 4: Simplify right side
    7,691.19x = 45,500,734.62
  5. Step 5: Solve for x
    x = 45,500,734.62/7,691.19
  6. Step 6: Final answer
    x = 5,915.96

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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.