Home / 2,729.28-3,765.46-1,666.76

Finding the Fourth Proportional to 2,729.28, 3,765.46 and 1,666.76

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Solution

The fourth proportional to 2,729.28, 3,765.46 and 1,666.76 is: 2,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.28 : 3,765.46 = 1,666.76 : x
  2. Step 2: Convert to fraction form
    2,729.28/3,765.46 = 1,666.76/x
  3. Step 3: Cross multiply
    2,729.28x = 3,765.46 × 1,666.76
  4. Step 4: Simplify right side
    2,729.28x = 6,276,118.11
  5. Step 5: Solve for x
    x = 6,276,118.11/2,729.28
  6. Step 6: Final answer
    x = 2,299.55

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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.