Home / 5,385.52-7,430.70-3,146.08

Finding the Fourth Proportional to 5,385.52, 7,430.70 and 3,146.08

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Solution

The fourth proportional to 5,385.52, 7,430.70 and 3,146.08 is: 4,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.52 : 7,430.70 = 3,146.08 : x
  2. Step 2: Convert to fraction form
    5,385.52/7,430.70 = 3,146.08/x
  3. Step 3: Cross multiply
    5,385.52x = 7,430.70 × 3,146.08
  4. Step 4: Simplify right side
    5,385.52x = 23,377,576.66
  5. Step 5: Solve for x
    x = 23,377,576.66/5,385.52
  6. Step 6: Final answer
    x = 4,340.82

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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.