Home / 2,742.30-4,114.76-1,281.24

Finding the Fourth Proportional to 2,742.30, 4,114.76 and 1,281.24

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Solution

The fourth proportional to 2,742.30, 4,114.76 and 1,281.24 is: 1,922.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.30 : 4,114.76 = 1,281.24 : x
  2. Step 2: Convert to fraction form
    2,742.30/4,114.76 = 1,281.24/x
  3. Step 3: Cross multiply
    2,742.30x = 4,114.76 × 1,281.24
  4. Step 4: Simplify right side
    2,742.30x = 5,271,988.70
  5. Step 5: Solve for x
    x = 5,271,988.70/2,742.30
  6. Step 6: Final answer
    x = 1,922.47

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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.