Home / 5,136.55-7,686.60-3,569.20

Finding the Fourth Proportional to 5,136.55, 7,686.60 and 3,569.20

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Solution

The fourth proportional to 5,136.55, 7,686.60 and 3,569.20 is: 5,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.55 : 7,686.60 = 3,569.20 : x
  2. Step 2: Convert to fraction form
    5,136.55/7,686.60 = 3,569.20/x
  3. Step 3: Cross multiply
    5,136.55x = 7,686.60 × 3,569.20
  4. Step 4: Simplify right side
    5,136.55x = 27,435,012.72
  5. Step 5: Solve for x
    x = 27,435,012.72/5,136.55
  6. Step 6: Final answer
    x = 5,341.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.