Home / 2,856.90-4,261.87-2,658.04

Finding the Fourth Proportional to 2,856.90, 4,261.87 and 2,658.04

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Solution

The fourth proportional to 2,856.90, 4,261.87 and 2,658.04 is: 3,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.90 : 4,261.87 = 2,658.04 : x
  2. Step 2: Convert to fraction form
    2,856.90/4,261.87 = 2,658.04/x
  3. Step 3: Cross multiply
    2,856.90x = 4,261.87 × 2,658.04
  4. Step 4: Simplify right side
    2,856.90x = 11,328,220.93
  5. Step 5: Solve for x
    x = 11,328,220.93/2,856.90
  6. Step 6: Final answer
    x = 3,965.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.