Home / 6,475.12-9,712.80-2,579.20

Finding the Fourth Proportional to 6,475.12, 9,712.80 and 2,579.20

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Solution

The fourth proportional to 6,475.12, 9,712.80 and 2,579.20 is: 3,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475.12 : 9,712.80 = 2,579.20 : x
  2. Step 2: Convert to fraction form
    6,475.12/9,712.80 = 2,579.20/x
  3. Step 3: Cross multiply
    6,475.12x = 9,712.80 × 2,579.20
  4. Step 4: Simplify right side
    6,475.12x = 25,051,253.76
  5. Step 5: Solve for x
    x = 25,051,253.76/6,475.12
  6. Step 6: Final answer
    x = 3,868.85

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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.