Home / 3,086.12-4,259.08-1,759.86

Finding the Fourth Proportional to 3,086.12, 4,259.08 and 1,759.86

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Solution

The fourth proportional to 3,086.12, 4,259.08 and 1,759.86 is: 2,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.12 : 4,259.08 = 1,759.86 : x
  2. Step 2: Convert to fraction form
    3,086.12/4,259.08 = 1,759.86/x
  3. Step 3: Cross multiply
    3,086.12x = 4,259.08 × 1,759.86
  4. Step 4: Simplify right side
    3,086.12x = 7,495,380.13
  5. Step 5: Solve for x
    x = 7,495,380.13/3,086.12
  6. Step 6: Final answer
    x = 2,428.74

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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.