Home / 5,131.43-7,697.15-1,235.84

Finding the Fourth Proportional to 5,131.43, 7,697.15 and 1,235.84

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Solution

The fourth proportional to 5,131.43, 7,697.15 and 1,235.84 is: 1,853.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.43 : 7,697.15 = 1,235.84 : x
  2. Step 2: Convert to fraction form
    5,131.43/7,697.15 = 1,235.84/x
  3. Step 3: Cross multiply
    5,131.43x = 7,697.15 × 1,235.84
  4. Step 4: Simplify right side
    5,131.43x = 9,512,404.28
  5. Step 5: Solve for x
    x = 9,512,404.28/5,131.43
  6. Step 6: Final answer
    x = 1,853.75

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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.