Home / 3,488.79-5,257.14-2,886.06

Finding the Fourth Proportional to 3,488.79, 5,257.14 and 2,886.06

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Solution

The fourth proportional to 3,488.79, 5,257.14 and 2,886.06 is: 4,348.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.79 : 5,257.14 = 2,886.06 : x
  2. Step 2: Convert to fraction form
    3,488.79/5,257.14 = 2,886.06/x
  3. Step 3: Cross multiply
    3,488.79x = 5,257.14 × 2,886.06
  4. Step 4: Simplify right side
    3,488.79x = 15,172,421.47
  5. Step 5: Solve for x
    x = 15,172,421.47/3,488.79
  6. Step 6: Final answer
    x = 4,348.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.