Home / 5,385.74-7,432.61-3,148.93

Finding the Fourth Proportional to 5,385.74, 7,432.61 and 3,148.93

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Solution

The fourth proportional to 5,385.74, 7,432.61 and 3,148.93 is: 4,345.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.74 : 7,432.61 = 3,148.93 : x
  2. Step 2: Convert to fraction form
    5,385.74/7,432.61 = 3,148.93/x
  3. Step 3: Cross multiply
    5,385.74x = 7,432.61 × 3,148.93
  4. Step 4: Simplify right side
    5,385.74x = 23,404,738.06
  5. Step 5: Solve for x
    x = 23,404,738.06/5,385.74
  6. Step 6: Final answer
    x = 4,345.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.