Home / 7,417.20-11,121.60-3,029.52

Finding the Fourth Proportional to 7,417.20, 11,121.60 and 3,029.52

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Solution

The fourth proportional to 7,417.20, 11,121.60 and 3,029.52 is: 4,542.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.20 : 11,121.60 = 3,029.52 : x
  2. Step 2: Convert to fraction form
    7,417.20/11,121.60 = 3,029.52/x
  3. Step 3: Cross multiply
    7,417.20x = 11,121.60 × 3,029.52
  4. Step 4: Simplify right side
    7,417.20x = 33,693,109.63
  5. Step 5: Solve for x
    x = 33,693,109.63/7,417.20
  6. Step 6: Final answer
    x = 4,542.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.