Home / 5,292.60-7,938.08-1,397.31

Finding the Fourth Proportional to 5,292.60, 7,938.08 and 1,397.31

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Solution

The fourth proportional to 5,292.60, 7,938.08 and 1,397.31 is: 2,095.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.60 : 7,938.08 = 1,397.31 : x
  2. Step 2: Convert to fraction form
    5,292.60/7,938.08 = 1,397.31/x
  3. Step 3: Cross multiply
    5,292.60x = 7,938.08 × 1,397.31
  4. Step 4: Simplify right side
    5,292.60x = 11,091,958.56
  5. Step 5: Solve for x
    x = 11,091,958.56/5,292.60
  6. Step 6: Final answer
    x = 2,095.75

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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.