Home / 2,662.46-3,988.40-1,254.95

Finding the Fourth Proportional to 2,662.46, 3,988.40 and 1,254.95

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Solution

The fourth proportional to 2,662.46, 3,988.40 and 1,254.95 is: 1,879.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.46 : 3,988.40 = 1,254.95 : x
  2. Step 2: Convert to fraction form
    2,662.46/3,988.40 = 1,254.95/x
  3. Step 3: Cross multiply
    2,662.46x = 3,988.40 × 1,254.95
  4. Step 4: Simplify right side
    2,662.46x = 5,005,222.64
  5. Step 5: Solve for x
    x = 5,005,222.64/2,662.46
  6. Step 6: Final answer
    x = 1,879.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.