Home / 3,585.56-5,378.10-1,120.58

Finding the Fourth Proportional to 3,585.56, 5,378.10 and 1,120.58

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Solution

The fourth proportional to 3,585.56, 5,378.10 and 1,120.58 is: 1,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.56 : 5,378.10 = 1,120.58 : x
  2. Step 2: Convert to fraction form
    3,585.56/5,378.10 = 1,120.58/x
  3. Step 3: Cross multiply
    3,585.56x = 5,378.10 × 1,120.58
  4. Step 4: Simplify right side
    3,585.56x = 6,026,591.30
  5. Step 5: Solve for x
    x = 6,026,591.30/3,585.56
  6. Step 6: Final answer
    x = 1,680.79

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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.