Home / 3,360.90-5,039.38-1,020.20

Finding the Fourth Proportional to 3,360.90, 5,039.38 and 1,020.20

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Solution

The fourth proportional to 3,360.90, 5,039.38 and 1,020.20 is: 1,529.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.90 : 5,039.38 = 1,020.20 : x
  2. Step 2: Convert to fraction form
    3,360.90/5,039.38 = 1,020.20/x
  3. Step 3: Cross multiply
    3,360.90x = 5,039.38 × 1,020.20
  4. Step 4: Simplify right side
    3,360.90x = 5,141,175.48
  5. Step 5: Solve for x
    x = 5,141,175.48/3,360.90
  6. Step 6: Final answer
    x = 1,529.70

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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.