Home / 4,129.85-5,703.82-2,801.25

Finding the Fourth Proportional to 4,129.85, 5,703.82 and 2,801.25

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Solution

The fourth proportional to 4,129.85, 5,703.82 and 2,801.25 is: 3,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.85 : 5,703.82 = 2,801.25 : x
  2. Step 2: Convert to fraction form
    4,129.85/5,703.82 = 2,801.25/x
  3. Step 3: Cross multiply
    4,129.85x = 5,703.82 × 2,801.25
  4. Step 4: Simplify right side
    4,129.85x = 15,977,818.77
  5. Step 5: Solve for x
    x = 15,977,818.77/4,129.85
  6. Step 6: Final answer
    x = 3,868.86

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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.