Home / 3,521.78-4,854.88-2,681.02

Finding the Fourth Proportional to 3,521.78, 4,854.88 and 2,681.02

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Solution

The fourth proportional to 3,521.78, 4,854.88 and 2,681.02 is: 3,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.78 : 4,854.88 = 2,681.02 : x
  2. Step 2: Convert to fraction form
    3,521.78/4,854.88 = 2,681.02/x
  3. Step 3: Cross multiply
    3,521.78x = 4,854.88 × 2,681.02
  4. Step 4: Simplify right side
    3,521.78x = 13,016,027.66
  5. Step 5: Solve for x
    x = 13,016,027.66/3,521.78
  6. Step 6: Final answer
    x = 3,695.87

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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.