Home / 6,887.40-10,325.30-2,988.87

Finding the Fourth Proportional to 6,887.40, 10,325.30 and 2,988.87

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Solution

The fourth proportional to 6,887.40, 10,325.30 and 2,988.87 is: 4,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.40 : 10,325.30 = 2,988.87 : x
  2. Step 2: Convert to fraction form
    6,887.40/10,325.30 = 2,988.87/x
  3. Step 3: Cross multiply
    6,887.40x = 10,325.30 × 2,988.87
  4. Step 4: Simplify right side
    6,887.40x = 30,860,964.47
  5. Step 5: Solve for x
    x = 30,860,964.47/6,887.40
  6. Step 6: Final answer
    x = 4,480.79

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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.