Home / 5,316.57-7,972.83-1,617.66

Finding the Fourth Proportional to 5,316.57, 7,972.83 and 1,617.66

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Solution

The fourth proportional to 5,316.57, 7,972.83 and 1,617.66 is: 2,425.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.57 : 7,972.83 = 1,617.66 : x
  2. Step 2: Convert to fraction form
    5,316.57/7,972.83 = 1,617.66/x
  3. Step 3: Cross multiply
    5,316.57x = 7,972.83 × 1,617.66
  4. Step 4: Simplify right side
    5,316.57x = 12,897,328.18
  5. Step 5: Solve for x
    x = 12,897,328.18/5,316.57
  6. Step 6: Final answer
    x = 2,425.87

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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.