Home / 5,143.68-7,101.14-3,255.57

Finding the Fourth Proportional to 5,143.68, 7,101.14 and 3,255.57

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Solution

The fourth proportional to 5,143.68, 7,101.14 and 3,255.57 is: 4,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.68 : 7,101.14 = 3,255.57 : x
  2. Step 2: Convert to fraction form
    5,143.68/7,101.14 = 3,255.57/x
  3. Step 3: Cross multiply
    5,143.68x = 7,101.14 × 3,255.57
  4. Step 4: Simplify right side
    5,143.68x = 23,118,242.07
  5. Step 5: Solve for x
    x = 23,118,242.07/5,143.68
  6. Step 6: Final answer
    x = 4,494.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.