Home / 6,877.90-10,320.50-3,181.87

Finding the Fourth Proportional to 6,877.90, 10,320.50 and 3,181.87

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Solution

The fourth proportional to 6,877.90, 10,320.50 and 3,181.87 is: 4,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.90 : 10,320.50 = 3,181.87 : x
  2. Step 2: Convert to fraction form
    6,877.90/10,320.50 = 3,181.87/x
  3. Step 3: Cross multiply
    6,877.90x = 10,320.50 × 3,181.87
  4. Step 4: Simplify right side
    6,877.90x = 32,838,489.34
  5. Step 5: Solve for x
    x = 32,838,489.34/6,877.90
  6. Step 6: Final answer
    x = 4,774.49

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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.