Home / 5,136.16-7,087.44-2,897.44

Finding the Fourth Proportional to 5,136.16, 7,087.44 and 2,897.44

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Solution

The fourth proportional to 5,136.16, 7,087.44 and 2,897.44 is: 3,998.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.16 : 7,087.44 = 2,897.44 : x
  2. Step 2: Convert to fraction form
    5,136.16/7,087.44 = 2,897.44/x
  3. Step 3: Cross multiply
    5,136.16x = 7,087.44 × 2,897.44
  4. Step 4: Simplify right side
    5,136.16x = 20,535,432.15
  5. Step 5: Solve for x
    x = 20,535,432.15/5,136.16
  6. Step 6: Final answer
    x = 3,998.21

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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.