Home / 5,148.74-7,722.97-1,253.11

Finding the Fourth Proportional to 5,148.74, 7,722.97 and 1,253.11

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Solution

The fourth proportional to 5,148.74, 7,722.97 and 1,253.11 is: 1,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.74 : 7,722.97 = 1,253.11 : x
  2. Step 2: Convert to fraction form
    5,148.74/7,722.97 = 1,253.11/x
  3. Step 3: Cross multiply
    5,148.74x = 7,722.97 × 1,253.11
  4. Step 4: Simplify right side
    5,148.74x = 9,677,730.94
  5. Step 5: Solve for x
    x = 9,677,730.94/5,148.74
  6. Step 6: Final answer
    x = 1,879.63

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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.