Home / 5,488.98-7,574.94-3,131.08

Finding the Fourth Proportional to 5,488.98, 7,574.94 and 3,131.08

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Solution

The fourth proportional to 5,488.98, 7,574.94 and 3,131.08 is: 4,320.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.98 : 7,574.94 = 3,131.08 : x
  2. Step 2: Convert to fraction form
    5,488.98/7,574.94 = 3,131.08/x
  3. Step 3: Cross multiply
    5,488.98x = 7,574.94 × 3,131.08
  4. Step 4: Simplify right side
    5,488.98x = 23,717,743.14
  5. Step 5: Solve for x
    x = 23,717,743.14/5,488.98
  6. Step 6: Final answer
    x = 4,320.97

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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.