Home / 5,270.43-7,272.98-3,030.78

Finding the Fourth Proportional to 5,270.43, 7,272.98 and 3,030.78

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Solution

The fourth proportional to 5,270.43, 7,272.98 and 3,030.78 is: 4,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.43 : 7,272.98 = 3,030.78 : x
  2. Step 2: Convert to fraction form
    5,270.43/7,272.98 = 3,030.78/x
  3. Step 3: Cross multiply
    5,270.43x = 7,272.98 × 3,030.78
  4. Step 4: Simplify right side
    5,270.43x = 22,042,787.17
  5. Step 5: Solve for x
    x = 22,042,787.17/5,270.43
  6. Step 6: Final answer
    x = 4,182.35

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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.