Home / 7,612.47-11,419.02-2,930.80

Finding the Fourth Proportional to 7,612.47, 11,419.02 and 2,930.80

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Solution

The fourth proportional to 7,612.47, 11,419.02 and 2,930.80 is: 4,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.47 : 11,419.02 = 2,930.80 : x
  2. Step 2: Convert to fraction form
    7,612.47/11,419.02 = 2,930.80/x
  3. Step 3: Cross multiply
    7,612.47x = 11,419.02 × 2,930.80
  4. Step 4: Simplify right side
    7,612.47x = 33,466,863.82
  5. Step 5: Solve for x
    x = 33,466,863.82/7,612.47
  6. Step 6: Final answer
    x = 4,396.32

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Double scale
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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.