Home / 5,136.68-7,087.30-3,146.52

Finding the Fourth Proportional to 5,136.68, 7,087.30 and 3,146.52

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Solution

The fourth proportional to 5,136.68, 7,087.30 and 3,146.52 is: 4,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.68 : 7,087.30 = 3,146.52 : x
  2. Step 2: Convert to fraction form
    5,136.68/7,087.30 = 3,146.52/x
  3. Step 3: Cross multiply
    5,136.68x = 7,087.30 × 3,146.52
  4. Step 4: Simplify right side
    5,136.68x = 22,300,331.20
  5. Step 5: Solve for x
    x = 22,300,331.20/5,136.68
  6. Step 6: Final answer
    x = 4,341.39

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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.