Home / 3,143.66-4,337.64-2,136.16

Finding the Fourth Proportional to 3,143.66, 4,337.64 and 2,136.16

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Solution

The fourth proportional to 3,143.66, 4,337.64 and 2,136.16 is: 2,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.66 : 4,337.64 = 2,136.16 : x
  2. Step 2: Convert to fraction form
    3,143.66/4,337.64 = 2,136.16/x
  3. Step 3: Cross multiply
    3,143.66x = 4,337.64 × 2,136.16
  4. Step 4: Simplify right side
    3,143.66x = 9,265,892.29
  5. Step 5: Solve for x
    x = 9,265,892.29/3,143.66
  6. Step 6: Final answer
    x = 2,947.49

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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.