Home / 4,327.79-6,492.13-1,987.39

Finding the Fourth Proportional to 4,327.79, 6,492.13 and 1,987.39

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Solution

The fourth proportional to 4,327.79, 6,492.13 and 1,987.39 is: 2,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,327.79 : 6,492.13 = 1,987.39 : x
  2. Step 2: Convert to fraction form
    4,327.79/6,492.13 = 1,987.39/x
  3. Step 3: Cross multiply
    4,327.79x = 6,492.13 × 1,987.39
  4. Step 4: Simplify right side
    4,327.79x = 12,902,373.04
  5. Step 5: Solve for x
    x = 12,902,373.04/4,327.79
  6. Step 6: Final answer
    x = 2,981.29

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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.