Home / 2,989.55-4,484.33-1,429.19

Finding the Fourth Proportional to 2,989.55, 4,484.33 and 1,429.19

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Solution

The fourth proportional to 2,989.55, 4,484.33 and 1,429.19 is: 2,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.55 : 4,484.33 = 1,429.19 : x
  2. Step 2: Convert to fraction form
    2,989.55/4,484.33 = 1,429.19/x
  3. Step 3: Cross multiply
    2,989.55x = 4,484.33 × 1,429.19
  4. Step 4: Simplify right side
    2,989.55x = 6,408,957.56
  5. Step 5: Solve for x
    x = 6,408,957.56/2,989.55
  6. Step 6: Final answer
    x = 2,143.78

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Similar ratio
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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.