Home / 1,874.66-2,585.37-1,278.11

Finding the Fourth Proportional to 1,874.66, 2,585.37 and 1,278.11

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Solution

The fourth proportional to 1,874.66, 2,585.37 and 1,278.11 is: 1,762.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.66 : 2,585.37 = 1,278.11 : x
  2. Step 2: Convert to fraction form
    1,874.66/2,585.37 = 1,278.11/x
  3. Step 3: Cross multiply
    1,874.66x = 2,585.37 × 1,278.11
  4. Step 4: Simplify right side
    1,874.66x = 3,304,374.32
  5. Step 5: Solve for x
    x = 3,304,374.32/1,874.66
  6. Step 6: Final answer
    x = 1,762.66

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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.