Home / 1,584.38-2,376.27-1,278.02

Finding the Fourth Proportional to 1,584.38, 2,376.27 and 1,278.02

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Solution

The fourth proportional to 1,584.38, 2,376.27 and 1,278.02 is: 1,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.38 : 2,376.27 = 1,278.02 : x
  2. Step 2: Convert to fraction form
    1,584.38/2,376.27 = 1,278.02/x
  3. Step 3: Cross multiply
    1,584.38x = 2,376.27 × 1,278.02
  4. Step 4: Simplify right side
    1,584.38x = 3,036,920.59
  5. Step 5: Solve for x
    x = 3,036,920.59/1,584.38
  6. Step 6: Final answer
    x = 1,916.79

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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.