Home / 3,585.78-5,376.92-1,120.86

Finding the Fourth Proportional to 3,585.78, 5,376.92 and 1,120.86

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Solution

The fourth proportional to 3,585.78, 5,376.92 and 1,120.86 is: 1,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.78 : 5,376.92 = 1,120.86 : x
  2. Step 2: Convert to fraction form
    3,585.78/5,376.92 = 1,120.86/x
  3. Step 3: Cross multiply
    3,585.78x = 5,376.92 × 1,120.86
  4. Step 4: Simplify right side
    3,585.78x = 6,026,768.95
  5. Step 5: Solve for x
    x = 6,026,768.95/3,585.78
  6. Step 6: Final answer
    x = 1,680.74

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1.5x scale

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.