Home / 4,086.06-5,638.95-3,142.86

Finding the Fourth Proportional to 4,086.06, 5,638.95 and 3,142.86

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Solution

The fourth proportional to 4,086.06, 5,638.95 and 3,142.86 is: 4,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.06 : 5,638.95 = 3,142.86 : x
  2. Step 2: Convert to fraction form
    4,086.06/5,638.95 = 3,142.86/x
  3. Step 3: Cross multiply
    4,086.06x = 5,638.95 × 3,142.86
  4. Step 4: Simplify right side
    4,086.06x = 17,722,430.40
  5. Step 5: Solve for x
    x = 17,722,430.40/4,086.06
  6. Step 6: Final answer
    x = 4,337.29

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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.