Home / 10,100.30-15,150.45-2,705.90

Finding the Fourth Proportional to 10,100.30, 15,150.45 and 2,705.90

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Solution

The fourth proportional to 10,100.30, 15,150.45 and 2,705.90 is: 4,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.30 : 15,150.45 = 2,705.90 : x
  2. Step 2: Convert to fraction form
    10,100.30/15,150.45 = 2,705.90/x
  3. Step 3: Cross multiply
    10,100.30x = 15,150.45 × 2,705.90
  4. Step 4: Simplify right side
    10,100.30x = 40,995,602.66
  5. Step 5: Solve for x
    x = 40,995,602.66/10,100.30
  6. Step 6: Final answer
    x = 4,058.85

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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.