Home / 4,115.78-5,681.02-3,562.20

Finding the Fourth Proportional to 4,115.78, 5,681.02 and 3,562.20

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Solution

The fourth proportional to 4,115.78, 5,681.02 and 3,562.20 is: 4,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.78 : 5,681.02 = 3,562.20 : x
  2. Step 2: Convert to fraction form
    4,115.78/5,681.02 = 3,562.20/x
  3. Step 3: Cross multiply
    4,115.78x = 5,681.02 × 3,562.20
  4. Step 4: Simplify right side
    4,115.78x = 20,236,929.44
  5. Step 5: Solve for x
    x = 20,236,929.44/4,115.78
  6. Step 6: Final answer
    x = 4,916.91

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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.