Home / 5,240.10-7,231.65-3,002.25

Finding the Fourth Proportional to 5,240.10, 7,231.65 and 3,002.25

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Solution

The fourth proportional to 5,240.10, 7,231.65 and 3,002.25 is: 4,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.10 : 7,231.65 = 3,002.25 : x
  2. Step 2: Convert to fraction form
    5,240.10/7,231.65 = 3,002.25/x
  3. Step 3: Cross multiply
    5,240.10x = 7,231.65 × 3,002.25
  4. Step 4: Simplify right side
    5,240.10x = 21,711,221.21
  5. Step 5: Solve for x
    x = 21,711,221.21/5,240.10
  6. Step 6: Final answer
    x = 4,143.28

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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.