Home / 3,681.39-5,079.86-2,488.97

Finding the Fourth Proportional to 3,681.39, 5,079.86 and 2,488.97

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Solution

The fourth proportional to 3,681.39, 5,079.86 and 2,488.97 is: 3,434.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.39 : 5,079.86 = 2,488.97 : x
  2. Step 2: Convert to fraction form
    3,681.39/5,079.86 = 2,488.97/x
  3. Step 3: Cross multiply
    3,681.39x = 5,079.86 × 2,488.97
  4. Step 4: Simplify right side
    3,681.39x = 12,643,628.73
  5. Step 5: Solve for x
    x = 12,643,628.73/3,681.39
  6. Step 6: Final answer
    x = 3,434.47

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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.