Home / 5,151.35-7,727.02-1,255.72

Finding the Fourth Proportional to 5,151.35, 7,727.02 and 1,255.72

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Solution

The fourth proportional to 5,151.35, 7,727.02 and 1,255.72 is: 1,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.35 : 7,727.02 = 1,255.72 : x
  2. Step 2: Convert to fraction form
    5,151.35/7,727.02 = 1,255.72/x
  3. Step 3: Cross multiply
    5,151.35x = 7,727.02 × 1,255.72
  4. Step 4: Simplify right side
    5,151.35x = 9,702,951.10
  5. Step 5: Solve for x
    x = 9,702,951.10/5,151.35
  6. Step 6: Final answer
    x = 1,883.58

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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.