Home / 6,871.24-10,307.60-2,487.72

Finding the Fourth Proportional to 6,871.24, 10,307.60 and 2,487.72

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Solution

The fourth proportional to 6,871.24, 10,307.60 and 2,487.72 is: 3,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.24 : 10,307.60 = 2,487.72 : x
  2. Step 2: Convert to fraction form
    6,871.24/10,307.60 = 2,487.72/x
  3. Step 3: Cross multiply
    6,871.24x = 10,307.60 × 2,487.72
  4. Step 4: Simplify right side
    6,871.24x = 25,642,422.67
  5. Step 5: Solve for x
    x = 25,642,422.67/6,871.24
  6. Step 6: Final answer
    x = 3,731.85

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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.