Home / 5,391.49-7,440.20-3,001.42

Finding the Fourth Proportional to 5,391.49, 7,440.20 and 3,001.42

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Solution

The fourth proportional to 5,391.49, 7,440.20 and 3,001.42 is: 4,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.49 : 7,440.20 = 3,001.42 : x
  2. Step 2: Convert to fraction form
    5,391.49/7,440.20 = 3,001.42/x
  3. Step 3: Cross multiply
    5,391.49x = 7,440.20 × 3,001.42
  4. Step 4: Simplify right side
    5,391.49x = 22,331,150.08
  5. Step 5: Solve for x
    x = 22,331,150.08/5,391.49
  6. Step 6: Final answer
    x = 4,141.93

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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.