Home / 2,180.15-3,269.13-1,009.15

Finding the Fourth Proportional to 2,180.15, 3,269.13 and 1,009.15

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Solution

The fourth proportional to 2,180.15, 3,269.13 and 1,009.15 is: 1,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.15 : 3,269.13 = 1,009.15 : x
  2. Step 2: Convert to fraction form
    2,180.15/3,269.13 = 1,009.15/x
  3. Step 3: Cross multiply
    2,180.15x = 3,269.13 × 1,009.15
  4. Step 4: Simplify right side
    2,180.15x = 3,299,028.24
  5. Step 5: Solve for x
    x = 3,299,028.24/2,180.15
  6. Step 6: Final answer
    x = 1,513.21

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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.