Home / 7,419.94-11,129.91-2,225.81

Finding the Fourth Proportional to 7,419.94, 11,129.91 and 2,225.81

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Solution

The fourth proportional to 7,419.94, 11,129.91 and 2,225.81 is: 3,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.94 : 11,129.91 = 2,225.81 : x
  2. Step 2: Convert to fraction form
    7,419.94/11,129.91 = 2,225.81/x
  3. Step 3: Cross multiply
    7,419.94x = 11,129.91 × 2,225.81
  4. Step 4: Simplify right side
    7,419.94x = 24,773,084.46
  5. Step 5: Solve for x
    x = 24,773,084.46/7,419.94
  6. Step 6: Final answer
    x = 3,338.72

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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.