Home / 2,135.42-3,203.16-1,269.26

Finding the Fourth Proportional to 2,135.42, 3,203.16 and 1,269.26

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Solution

The fourth proportional to 2,135.42, 3,203.16 and 1,269.26 is: 1,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.42 : 3,203.16 = 1,269.26 : x
  2. Step 2: Convert to fraction form
    2,135.42/3,203.16 = 1,269.26/x
  3. Step 3: Cross multiply
    2,135.42x = 3,203.16 × 1,269.26
  4. Step 4: Simplify right side
    2,135.42x = 4,065,642.86
  5. Step 5: Solve for x
    x = 4,065,642.86/2,135.42
  6. Step 6: Final answer
    x = 1,903.91

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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.