Home / 5,242.44-7,862.58-1,543.89

Finding the Fourth Proportional to 5,242.44, 7,862.58 and 1,543.89

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Solution

The fourth proportional to 5,242.44, 7,862.58 and 1,543.89 is: 2,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.44 : 7,862.58 = 1,543.89 : x
  2. Step 2: Convert to fraction form
    5,242.44/7,862.58 = 1,543.89/x
  3. Step 3: Cross multiply
    5,242.44x = 7,862.58 × 1,543.89
  4. Step 4: Simplify right side
    5,242.44x = 12,138,958.64
  5. Step 5: Solve for x
    x = 12,138,958.64/5,242.44
  6. Step 6: Final answer
    x = 2,315.52

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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.