Home / 7,661.13-11,492.40-2,981.49

Finding the Fourth Proportional to 7,661.13, 11,492.40 and 2,981.49

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Solution

The fourth proportional to 7,661.13, 11,492.40 and 2,981.49 is: 4,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.13 : 11,492.40 = 2,981.49 : x
  2. Step 2: Convert to fraction form
    7,661.13/11,492.40 = 2,981.49/x
  3. Step 3: Cross multiply
    7,661.13x = 11,492.40 × 2,981.49
  4. Step 4: Simplify right side
    7,661.13x = 34,264,475.68
  5. Step 5: Solve for x
    x = 34,264,475.68/7,661.13
  6. Step 6: Final answer
    x = 4,472.51

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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.