Home / 5,250.90-7,876.28-2,130.17

Finding the Fourth Proportional to 5,250.90, 7,876.28 and 2,130.17

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Solution

The fourth proportional to 5,250.90, 7,876.28 and 2,130.17 is: 3,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.90 : 7,876.28 = 2,130.17 : x
  2. Step 2: Convert to fraction form
    5,250.90/7,876.28 = 2,130.17/x
  3. Step 3: Cross multiply
    5,250.90x = 7,876.28 × 2,130.17
  4. Step 4: Simplify right side
    5,250.90x = 16,777,765.34
  5. Step 5: Solve for x
    x = 16,777,765.34/5,250.90
  6. Step 6: Final answer
    x = 3,195.22

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1.5x scale

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.