Home / 7,613.79-11,422.53-2,419.71

Finding the Fourth Proportional to 7,613.79, 11,422.53 and 2,419.71

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Solution

The fourth proportional to 7,613.79, 11,422.53 and 2,419.71 is: 3,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.79 : 11,422.53 = 2,419.71 : x
  2. Step 2: Convert to fraction form
    7,613.79/11,422.53 = 2,419.71/x
  3. Step 3: Cross multiply
    7,613.79x = 11,422.53 × 2,419.71
  4. Step 4: Simplify right side
    7,613.79x = 27,639,210.07
  5. Step 5: Solve for x
    x = 27,639,210.07/7,613.79
  6. Step 6: Final answer
    x = 3,630.15

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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.