Home / 2,948.89-4,423.34-1,387.92

Finding the Fourth Proportional to 2,948.89, 4,423.34 and 1,387.92

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Solution

The fourth proportional to 2,948.89, 4,423.34 and 1,387.92 is: 2,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.89 : 4,423.34 = 1,387.92 : x
  2. Step 2: Convert to fraction form
    2,948.89/4,423.34 = 1,387.92/x
  3. Step 3: Cross multiply
    2,948.89x = 4,423.34 × 1,387.92
  4. Step 4: Simplify right side
    2,948.89x = 6,139,242.05
  5. Step 5: Solve for x
    x = 6,139,242.05/2,948.89
  6. Step 6: Final answer
    x = 2,081.88

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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.