Home / 3,146.13-4,342.68-2,927.43

Finding the Fourth Proportional to 3,146.13, 4,342.68 and 2,927.43

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Solution

The fourth proportional to 3,146.13, 4,342.68 and 2,927.43 is: 4,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.13 : 4,342.68 = 2,927.43 : x
  2. Step 2: Convert to fraction form
    3,146.13/4,342.68 = 2,927.43/x
  3. Step 3: Cross multiply
    3,146.13x = 4,342.68 × 2,927.43
  4. Step 4: Simplify right side
    3,146.13x = 12,712,891.71
  5. Step 5: Solve for x
    x = 12,712,891.71/3,146.13
  6. Step 6: Final answer
    x = 4,040.80

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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.