Home / 1,867.85-2,576.31-1,618.73

Finding the Fourth Proportional to 1,867.85, 2,576.31 and 1,618.73

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Solution

The fourth proportional to 1,867.85, 2,576.31 and 1,618.73 is: 2,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.85 : 2,576.31 = 1,618.73 : x
  2. Step 2: Convert to fraction form
    1,867.85/2,576.31 = 1,618.73/x
  3. Step 3: Cross multiply
    1,867.85x = 2,576.31 × 1,618.73
  4. Step 4: Simplify right side
    1,867.85x = 4,170,350.29
  5. Step 5: Solve for x
    x = 4,170,350.29/1,867.85
  6. Step 6: Final answer
    x = 2,232.70

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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.