Home / 1,669.46-2,298.46-1,374.20

Finding the Fourth Proportional to 1,669.46, 2,298.46 and 1,374.20

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Solution

The fourth proportional to 1,669.46, 2,298.46 and 1,374.20 is: 1,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.46 : 2,298.46 = 1,374.20 : x
  2. Step 2: Convert to fraction form
    1,669.46/2,298.46 = 1,374.20/x
  3. Step 3: Cross multiply
    1,669.46x = 2,298.46 × 1,374.20
  4. Step 4: Simplify right side
    1,669.46x = 3,158,543.73
  5. Step 5: Solve for x
    x = 3,158,543.73/1,669.46
  6. Step 6: Final answer
    x = 1,891.96

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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.