Home / 3,142.92-4,337.28-1,816.74

Finding the Fourth Proportional to 3,142.92, 4,337.28 and 1,816.74

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Solution

The fourth proportional to 3,142.92, 4,337.28 and 1,816.74 is: 2,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.92 : 4,337.28 = 1,816.74 : x
  2. Step 2: Convert to fraction form
    3,142.92/4,337.28 = 1,816.74/x
  3. Step 3: Cross multiply
    3,142.92x = 4,337.28 × 1,816.74
  4. Step 4: Simplify right side
    3,142.92x = 7,879,710.07
  5. Step 5: Solve for x
    x = 7,879,710.07/3,142.92
  6. Step 6: Final answer
    x = 2,507.13

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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.