Home / 5,218.40-7,204.56-4,042.40

Finding the Fourth Proportional to 5,218.40, 7,204.56 and 4,042.40

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Solution

The fourth proportional to 5,218.40, 7,204.56 and 4,042.40 is: 5,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.40 : 7,204.56 = 4,042.40 : x
  2. Step 2: Convert to fraction form
    5,218.40/7,204.56 = 4,042.40/x
  3. Step 3: Cross multiply
    5,218.40x = 7,204.56 × 4,042.40
  4. Step 4: Simplify right side
    5,218.40x = 29,123,713.34
  5. Step 5: Solve for x
    x = 29,123,713.34/5,218.40
  6. Step 6: Final answer
    x = 5,580.97

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1.5x scale

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.