Home / 4,311.52-6,464.10-2,921.40

Finding the Fourth Proportional to 4,311.52, 6,464.10 and 2,921.40

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Solution

The fourth proportional to 4,311.52, 6,464.10 and 2,921.40 is: 4,379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.52 : 6,464.10 = 2,921.40 : x
  2. Step 2: Convert to fraction form
    4,311.52/6,464.10 = 2,921.40/x
  3. Step 3: Cross multiply
    4,311.52x = 6,464.10 × 2,921.40
  4. Step 4: Simplify right side
    4,311.52x = 18,884,221.74
  5. Step 5: Solve for x
    x = 18,884,221.74/4,311.52
  6. Step 6: Final answer
    x = 4,379.95

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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.