Home / 3,086.26-4,259.15-1,689.01

Finding the Fourth Proportional to 3,086.26, 4,259.15 and 1,689.01

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Solution

The fourth proportional to 3,086.26, 4,259.15 and 1,689.01 is: 2,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.26 : 4,259.15 = 1,689.01 : x
  2. Step 2: Convert to fraction form
    3,086.26/4,259.15 = 1,689.01/x
  3. Step 3: Cross multiply
    3,086.26x = 4,259.15 × 1,689.01
  4. Step 4: Simplify right side
    3,086.26x = 7,193,746.94
  5. Step 5: Solve for x
    x = 7,193,746.94/3,086.26
  6. Step 6: Final answer
    x = 2,330.89

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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.