Home / 5,612.02-8,418.15-3,140.70

Finding the Fourth Proportional to 5,612.02, 8,418.15 and 3,140.70

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Solution

The fourth proportional to 5,612.02, 8,418.15 and 3,140.70 is: 4,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.02 : 8,418.15 = 3,140.70 : x
  2. Step 2: Convert to fraction form
    5,612.02/8,418.15 = 3,140.70/x
  3. Step 3: Cross multiply
    5,612.02x = 8,418.15 × 3,140.70
  4. Step 4: Simplify right side
    5,612.02x = 26,438,883.71
  5. Step 5: Solve for x
    x = 26,438,883.71/5,612.02
  6. Step 6: Final answer
    x = 4,711.12

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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.