Home / 5,148.87-7,104.92-3,159.51

Finding the Fourth Proportional to 5,148.87, 7,104.92 and 3,159.51

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Solution

The fourth proportional to 5,148.87, 7,104.92 and 3,159.51 is: 4,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.87 : 7,104.92 = 3,159.51 : x
  2. Step 2: Convert to fraction form
    5,148.87/7,104.92 = 3,159.51/x
  3. Step 3: Cross multiply
    5,148.87x = 7,104.92 × 3,159.51
  4. Step 4: Simplify right side
    5,148.87x = 22,448,049.99
  5. Step 5: Solve for x
    x = 22,448,049.99/5,148.87
  6. Step 6: Final answer
    x = 4,359.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.