Home / 4,850.52-7,275.90-1,387.80

Finding the Fourth Proportional to 4,850.52, 7,275.90 and 1,387.80

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Solution

The fourth proportional to 4,850.52, 7,275.90 and 1,387.80 is: 2,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,850.52 : 7,275.90 = 1,387.80 : x
  2. Step 2: Convert to fraction form
    4,850.52/7,275.90 = 1,387.80/x
  3. Step 3: Cross multiply
    4,850.52x = 7,275.90 × 1,387.80
  4. Step 4: Simplify right side
    4,850.52x = 10,097,494.02
  5. Step 5: Solve for x
    x = 10,097,494.02/4,850.52
  6. Step 6: Final answer
    x = 2,081.73

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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.