Home / 3,139.29-4,705.02-2,748.38

Finding the Fourth Proportional to 3,139.29, 4,705.02 and 2,748.38

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Solution

The fourth proportional to 3,139.29, 4,705.02 and 2,748.38 is: 4,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.29 : 4,705.02 = 2,748.38 : x
  2. Step 2: Convert to fraction form
    3,139.29/4,705.02 = 2,748.38/x
  3. Step 3: Cross multiply
    3,139.29x = 4,705.02 × 2,748.38
  4. Step 4: Simplify right side
    3,139.29x = 12,931,159.34
  5. Step 5: Solve for x
    x = 12,931,159.34/3,139.29
  6. Step 6: Final answer
    x = 4,119.14

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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.