Home / 3,585.36-5,377.80-1,120.20

Finding the Fourth Proportional to 3,585.36, 5,377.80 and 1,120.20

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Solution

The fourth proportional to 3,585.36, 5,377.80 and 1,120.20 is: 1,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.36 : 5,377.80 = 1,120.20 : x
  2. Step 2: Convert to fraction form
    3,585.36/5,377.80 = 1,120.20/x
  3. Step 3: Cross multiply
    3,585.36x = 5,377.80 × 1,120.20
  4. Step 4: Simplify right side
    3,585.36x = 6,024,211.56
  5. Step 5: Solve for x
    x = 6,024,211.56/3,585.36
  6. Step 6: Final answer
    x = 1,680.23

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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.