Home / 3,136.19-4,332.15-2,511.20

Finding the Fourth Proportional to 3,136.19, 4,332.15 and 2,511.20

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Solution

The fourth proportional to 3,136.19, 4,332.15 and 2,511.20 is: 3,468.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.19 : 4,332.15 = 2,511.20 : x
  2. Step 2: Convert to fraction form
    3,136.19/4,332.15 = 2,511.20/x
  3. Step 3: Cross multiply
    3,136.19x = 4,332.15 × 2,511.20
  4. Step 4: Simplify right side
    3,136.19x = 10,878,905.91
  5. Step 5: Solve for x
    x = 10,878,905.91/3,136.19
  6. Step 6: Final answer
    x = 3,468.83

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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.