Home / 10,601.28-15,902.08-2,811.20

Finding the Fourth Proportional to 10,601.28, 15,902.08 and 2,811.20

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Solution

The fourth proportional to 10,601.28, 15,902.08 and 2,811.20 is: 4,216.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,601.28 : 15,902.08 = 2,811.20 : x
  2. Step 2: Convert to fraction form
    10,601.28/15,902.08 = 2,811.20/x
  3. Step 3: Cross multiply
    10,601.28x = 15,902.08 × 2,811.20
  4. Step 4: Simplify right side
    10,601.28x = 44,703,927.30
  5. Step 5: Solve for x
    x = 44,703,927.30/10,601.28
  6. Step 6: Final answer
    x = 4,216.84

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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.