Home / 5,292.90-7,939.38-1,397.28

Finding the Fourth Proportional to 5,292.90, 7,939.38 and 1,397.28

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Solution

The fourth proportional to 5,292.90, 7,939.38 and 1,397.28 is: 2,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.90 : 7,939.38 = 1,397.28 : x
  2. Step 2: Convert to fraction form
    5,292.90/7,939.38 = 1,397.28/x
  3. Step 3: Cross multiply
    5,292.90x = 7,939.38 × 1,397.28
  4. Step 4: Simplify right side
    5,292.90x = 11,093,536.89
  5. Step 5: Solve for x
    x = 11,093,536.89/5,292.90
  6. Step 6: Final answer
    x = 2,095.93

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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.