Home / 5,148.25-7,722.42-1,252.65

Finding the Fourth Proportional to 5,148.25, 7,722.42 and 1,252.65

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Solution

The fourth proportional to 5,148.25, 7,722.42 and 1,252.65 is: 1,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.25 : 7,722.42 = 1,252.65 : x
  2. Step 2: Convert to fraction form
    5,148.25/7,722.42 = 1,252.65/x
  3. Step 3: Cross multiply
    5,148.25x = 7,722.42 × 1,252.65
  4. Step 4: Simplify right side
    5,148.25x = 9,673,489.41
  5. Step 5: Solve for x
    x = 9,673,489.41/5,148.25
  6. Step 6: Final answer
    x = 1,878.99

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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.