Home / 3,585.12-5,377.68-1,120.56

Finding the Fourth Proportional to 3,585.12, 5,377.68 and 1,120.56

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Solution

The fourth proportional to 3,585.12, 5,377.68 and 1,120.56 is: 1,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.12 : 5,377.68 = 1,120.56 : x
  2. Step 2: Convert to fraction form
    3,585.12/5,377.68 = 1,120.56/x
  3. Step 3: Cross multiply
    3,585.12x = 5,377.68 × 1,120.56
  4. Step 4: Simplify right side
    3,585.12x = 6,026,013.10
  5. Step 5: Solve for x
    x = 6,026,013.10/3,585.12
  6. Step 6: Final answer
    x = 1,680.84

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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.