Home / 4,129.35-5,699.13-2,638.26

Finding the Fourth Proportional to 4,129.35, 5,699.13 and 2,638.26

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Solution

The fourth proportional to 4,129.35, 5,699.13 and 2,638.26 is: 3,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.35 : 5,699.13 = 2,638.26 : x
  2. Step 2: Convert to fraction form
    4,129.35/5,699.13 = 2,638.26/x
  3. Step 3: Cross multiply
    4,129.35x = 5,699.13 × 2,638.26
  4. Step 4: Simplify right side
    4,129.35x = 15,035,773.52
  5. Step 5: Solve for x
    x = 15,035,773.52/4,129.35
  6. Step 6: Final answer
    x = 3,641.20

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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.