Home / 5,157.57-7,737.89-1,647.80

Finding the Fourth Proportional to 5,157.57, 7,737.89 and 1,647.80

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Solution

The fourth proportional to 5,157.57, 7,737.89 and 1,647.80 is: 2,472.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.57 : 7,737.89 = 1,647.80 : x
  2. Step 2: Convert to fraction form
    5,157.57/7,737.89 = 1,647.80/x
  3. Step 3: Cross multiply
    5,157.57x = 7,737.89 × 1,647.80
  4. Step 4: Simplify right side
    5,157.57x = 12,750,495.14
  5. Step 5: Solve for x
    x = 12,750,495.14/5,157.57
  6. Step 6: Final answer
    x = 2,472.19

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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.