Home / 7,419.40-11,125.80-2,225.68

Finding the Fourth Proportional to 7,419.40, 11,125.80 and 2,225.68

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Solution

The fourth proportional to 7,419.40, 11,125.80 and 2,225.68 is: 3,337.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.40 : 11,125.80 = 2,225.68 : x
  2. Step 2: Convert to fraction form
    7,419.40/11,125.80 = 2,225.68/x
  3. Step 3: Cross multiply
    7,419.40x = 11,125.80 × 2,225.68
  4. Step 4: Simplify right side
    7,419.40x = 24,762,470.54
  5. Step 5: Solve for x
    x = 24,762,470.54/7,419.40
  6. Step 6: Final answer
    x = 3,337.53

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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.