Home / 3,086.73-4,259.70-1,689.48

Finding the Fourth Proportional to 3,086.73, 4,259.70 and 1,689.48

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Solution

The fourth proportional to 3,086.73, 4,259.70 and 1,689.48 is: 2,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.73 : 4,259.70 = 1,689.48 : x
  2. Step 2: Convert to fraction form
    3,086.73/4,259.70 = 1,689.48/x
  3. Step 3: Cross multiply
    3,086.73x = 4,259.70 × 1,689.48
  4. Step 4: Simplify right side
    3,086.73x = 7,196,677.96
  5. Step 5: Solve for x
    x = 7,196,677.96/3,086.73
  6. Step 6: Final answer
    x = 2,331.49

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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.