Home / 7,561.16-11,341.68-2,630.78

Finding the Fourth Proportional to 7,561.16, 11,341.68 and 2,630.78

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Solution

The fourth proportional to 7,561.16, 11,341.68 and 2,630.78 is: 3,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.16 : 11,341.68 = 2,630.78 : x
  2. Step 2: Convert to fraction form
    7,561.16/11,341.68 = 2,630.78/x
  3. Step 3: Cross multiply
    7,561.16x = 11,341.68 × 2,630.78
  4. Step 4: Simplify right side
    7,561.16x = 29,837,464.91
  5. Step 5: Solve for x
    x = 29,837,464.91/7,561.16
  6. Step 6: Final answer
    x = 3,946.15

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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.