Home / 5,159.42-7,740.30-1,696.70

Finding the Fourth Proportional to 5,159.42, 7,740.30 and 1,696.70

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Solution

The fourth proportional to 5,159.42, 7,740.30 and 1,696.70 is: 2,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.42 : 7,740.30 = 1,696.70 : x
  2. Step 2: Convert to fraction form
    5,159.42/7,740.30 = 1,696.70/x
  3. Step 3: Cross multiply
    5,159.42x = 7,740.30 × 1,696.70
  4. Step 4: Simplify right side
    5,159.42x = 13,132,967.01
  5. Step 5: Solve for x
    x = 13,132,967.01/5,159.42
  6. Step 6: Final answer
    x = 2,545.43

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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.