Home / 5,136.90-7,705.35-3,192.90

Finding the Fourth Proportional to 5,136.90, 7,705.35 and 3,192.90

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Solution

The fourth proportional to 5,136.90, 7,705.35 and 3,192.90 is: 4,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.90 : 7,705.35 = 3,192.90 : x
  2. Step 2: Convert to fraction form
    5,136.90/7,705.35 = 3,192.90/x
  3. Step 3: Cross multiply
    5,136.90x = 7,705.35 × 3,192.90
  4. Step 4: Simplify right side
    5,136.90x = 24,602,412.02
  5. Step 5: Solve for x
    x = 24,602,412.02/5,136.90
  6. Step 6: Final answer
    x = 4,789.35

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Similar ratio
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1.5x scale

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.