Home / 2,135.19-3,203.38-1,040.18

Finding the Fourth Proportional to 2,135.19, 3,203.38 and 1,040.18

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Solution

The fourth proportional to 2,135.19, 3,203.38 and 1,040.18 is: 1,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.19 : 3,203.38 = 1,040.18 : x
  2. Step 2: Convert to fraction form
    2,135.19/3,203.38 = 1,040.18/x
  3. Step 3: Cross multiply
    2,135.19x = 3,203.38 × 1,040.18
  4. Step 4: Simplify right side
    2,135.19x = 3,332,077.09
  5. Step 5: Solve for x
    x = 3,332,077.09/2,135.19
  6. Step 6: Final answer
    x = 1,560.55

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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.