Home / 2,871.08-3,961.98-1,753.89

Finding the Fourth Proportional to 2,871.08, 3,961.98 and 1,753.89

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Solution

The fourth proportional to 2,871.08, 3,961.98 and 1,753.89 is: 2,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.08 : 3,961.98 = 1,753.89 : x
  2. Step 2: Convert to fraction form
    2,871.08/3,961.98 = 1,753.89/x
  3. Step 3: Cross multiply
    2,871.08x = 3,961.98 × 1,753.89
  4. Step 4: Simplify right side
    2,871.08x = 6,948,862.24
  5. Step 5: Solve for x
    x = 6,948,862.24/2,871.08
  6. Step 6: Final answer
    x = 2,420.30

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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.