Home / 3,421.44-5,132.24-1,113.12

Finding the Fourth Proportional to 3,421.44, 5,132.24 and 1,113.12

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Solution

The fourth proportional to 3,421.44, 5,132.24 and 1,113.12 is: 1,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.44 : 5,132.24 = 1,113.12 : x
  2. Step 2: Convert to fraction form
    3,421.44/5,132.24 = 1,113.12/x
  3. Step 3: Cross multiply
    3,421.44x = 5,132.24 × 1,113.12
  4. Step 4: Simplify right side
    3,421.44x = 5,712,798.99
  5. Step 5: Solve for x
    x = 5,712,798.99/3,421.44
  6. Step 6: Final answer
    x = 1,669.71

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Double scale
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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.