Home / 5,488.94-7,574.60-3,131.04

Finding the Fourth Proportional to 5,488.94, 7,574.60 and 3,131.04

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Solution

The fourth proportional to 5,488.94, 7,574.60 and 3,131.04 is: 4,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.94 : 7,574.60 = 3,131.04 : x
  2. Step 2: Convert to fraction form
    5,488.94/7,574.60 = 3,131.04/x
  3. Step 3: Cross multiply
    5,488.94x = 7,574.60 × 3,131.04
  4. Step 4: Simplify right side
    5,488.94x = 23,716,375.58
  5. Step 5: Solve for x
    x = 23,716,375.58/5,488.94
  6. Step 6: Final answer
    x = 4,320.76

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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.