Home / 3,402.12-4,694.78-1,889.62

Finding the Fourth Proportional to 3,402.12, 4,694.78 and 1,889.62

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Solution

The fourth proportional to 3,402.12, 4,694.78 and 1,889.62 is: 2,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.12 : 4,694.78 = 1,889.62 : x
  2. Step 2: Convert to fraction form
    3,402.12/4,694.78 = 1,889.62/x
  3. Step 3: Cross multiply
    3,402.12x = 4,694.78 × 1,889.62
  4. Step 4: Simplify right side
    3,402.12x = 8,871,350.18
  5. Step 5: Solve for x
    x = 8,871,350.18/3,402.12
  6. Step 6: Final answer
    x = 2,607.59

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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.