Home / 4,851.24-7,275.60-1,387.68

Finding the Fourth Proportional to 4,851.24, 7,275.60 and 1,387.68

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Solution

The fourth proportional to 4,851.24, 7,275.60 and 1,387.68 is: 2,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.24 : 7,275.60 = 1,387.68 : x
  2. Step 2: Convert to fraction form
    4,851.24/7,275.60 = 1,387.68/x
  3. Step 3: Cross multiply
    4,851.24x = 7,275.60 × 1,387.68
  4. Step 4: Simplify right side
    4,851.24x = 10,096,204.61
  5. Step 5: Solve for x
    x = 10,096,204.61/4,851.24
  6. Step 6: Final answer
    x = 2,081.16

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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.