Home / 2,680.38-4,018.86-1,585.08

Finding the Fourth Proportional to 2,680.38, 4,018.86 and 1,585.08

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Solution

The fourth proportional to 2,680.38, 4,018.86 and 1,585.08 is: 2,376.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.38 : 4,018.86 = 1,585.08 : x
  2. Step 2: Convert to fraction form
    2,680.38/4,018.86 = 1,585.08/x
  3. Step 3: Cross multiply
    2,680.38x = 4,018.86 × 1,585.08
  4. Step 4: Simplify right side
    2,680.38x = 6,370,214.61
  5. Step 5: Solve for x
    x = 6,370,214.61/2,680.38
  6. Step 6: Final answer
    x = 2,376.61

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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.