Home / 3,119.86-4,301.10-2,492.50

Finding the Fourth Proportional to 3,119.86, 4,301.10 and 2,492.50

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Solution

The fourth proportional to 3,119.86, 4,301.10 and 2,492.50 is: 3,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.86 : 4,301.10 = 2,492.50 : x
  2. Step 2: Convert to fraction form
    3,119.86/4,301.10 = 2,492.50/x
  3. Step 3: Cross multiply
    3,119.86x = 4,301.10 × 2,492.50
  4. Step 4: Simplify right side
    3,119.86x = 10,720,491.75
  5. Step 5: Solve for x
    x = 10,720,491.75/3,119.86
  6. Step 6: Final answer
    x = 3,436.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.