Home / 3,393.40-5,087.21-1,543.87

Finding the Fourth Proportional to 3,393.40, 5,087.21 and 1,543.87

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Solution

The fourth proportional to 3,393.40, 5,087.21 and 1,543.87 is: 2,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.40 : 5,087.21 = 1,543.87 : x
  2. Step 2: Convert to fraction form
    3,393.40/5,087.21 = 1,543.87/x
  3. Step 3: Cross multiply
    3,393.40x = 5,087.21 × 1,543.87
  4. Step 4: Simplify right side
    3,393.40x = 7,853,965.47
  5. Step 5: Solve for x
    x = 7,853,965.47/3,393.40
  6. Step 6: Final answer
    x = 2,314.48

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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.