Home / 7,929.95-11,892.56-2,381.81

Finding the Fourth Proportional to 7,929.95, 11,892.56 and 2,381.81

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Solution

The fourth proportional to 7,929.95, 11,892.56 and 2,381.81 is: 3,572.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.95 : 11,892.56 = 2,381.81 : x
  2. Step 2: Convert to fraction form
    7,929.95/11,892.56 = 2,381.81/x
  3. Step 3: Cross multiply
    7,929.95x = 11,892.56 × 2,381.81
  4. Step 4: Simplify right side
    7,929.95x = 28,325,806.42
  5. Step 5: Solve for x
    x = 28,325,806.42/7,929.95
  6. Step 6: Final answer
    x = 3,572.00

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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.