Home / 1,449.18-2,000.10-1,076.58

Finding the Fourth Proportional to 1,449.18, 2,000.10 and 1,076.58

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Solution

The fourth proportional to 1,449.18, 2,000.10 and 1,076.58 is: 1,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.18 : 2,000.10 = 1,076.58 : x
  2. Step 2: Convert to fraction form
    1,449.18/2,000.10 = 1,076.58/x
  3. Step 3: Cross multiply
    1,449.18x = 2,000.10 × 1,076.58
  4. Step 4: Simplify right side
    1,449.18x = 2,153,267.66
  5. Step 5: Solve for x
    x = 2,153,267.66/1,449.18
  6. Step 6: Final answer
    x = 1,485.85

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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.