Home / 3,060.35-4,591.28-869.10

Finding the Fourth Proportional to 3,060.35, 4,591.28 and 869.10

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Solution

The fourth proportional to 3,060.35, 4,591.28 and 869.10 is: 1,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.35 : 4,591.28 = 869.10 : x
  2. Step 2: Convert to fraction form
    3,060.35/4,591.28 = 869.10/x
  3. Step 3: Cross multiply
    3,060.35x = 4,591.28 × 869.10
  4. Step 4: Simplify right side
    3,060.35x = 3,990,277.10
  5. Step 5: Solve for x
    x = 3,990,277.10/3,060.35
  6. Step 6: Final answer
    x = 1,303.87

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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.