Home / 5,241.29-7,860.38-1,543.43

Finding the Fourth Proportional to 5,241.29, 7,860.38 and 1,543.43

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Solution

The fourth proportional to 5,241.29, 7,860.38 and 1,543.43 is: 2,314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.29 : 7,860.38 = 1,543.43 : x
  2. Step 2: Convert to fraction form
    5,241.29/7,860.38 = 1,543.43/x
  3. Step 3: Cross multiply
    5,241.29x = 7,860.38 × 1,543.43
  4. Step 4: Simplify right side
    5,241.29x = 12,131,969.81
  5. Step 5: Solve for x
    x = 12,131,969.81/5,241.29
  6. Step 6: Final answer
    x = 2,314.69

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1.5x scale

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.