Home / 1,374.06-1,895.40-1,281.18

Finding the Fourth Proportional to 1,374.06, 1,895.40 and 1,281.18

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Solution

The fourth proportional to 1,374.06, 1,895.40 and 1,281.18 is: 1,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.06 : 1,895.40 = 1,281.18 : x
  2. Step 2: Convert to fraction form
    1,374.06/1,895.40 = 1,281.18/x
  3. Step 3: Cross multiply
    1,374.06x = 1,895.40 × 1,281.18
  4. Step 4: Simplify right side
    1,374.06x = 2,428,348.57
  5. Step 5: Solve for x
    x = 2,428,348.57/1,374.06
  6. Step 6: Final answer
    x = 1,767.28

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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.