Home / 5,221.24-7,205.10-3,126.52

Finding the Fourth Proportional to 5,221.24, 7,205.10 and 3,126.52

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Solution

The fourth proportional to 5,221.24, 7,205.10 and 3,126.52 is: 4,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.24 : 7,205.10 = 3,126.52 : x
  2. Step 2: Convert to fraction form
    5,221.24/7,205.10 = 3,126.52/x
  3. Step 3: Cross multiply
    5,221.24x = 7,205.10 × 3,126.52
  4. Step 4: Simplify right side
    5,221.24x = 22,526,889.25
  5. Step 5: Solve for x
    x = 22,526,889.25/5,221.24
  6. Step 6: Final answer
    x = 4,314.47

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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.