Home / 4,255.40-6,383.11-1,135.42

Finding the Fourth Proportional to 4,255.40, 6,383.11 and 1,135.42

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Solution

The fourth proportional to 4,255.40, 6,383.11 and 1,135.42 is: 1,703.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.40 : 6,383.11 = 1,135.42 : x
  2. Step 2: Convert to fraction form
    4,255.40/6,383.11 = 1,135.42/x
  3. Step 3: Cross multiply
    4,255.40x = 6,383.11 × 1,135.42
  4. Step 4: Simplify right side
    4,255.40x = 7,247,512.67
  5. Step 5: Solve for x
    x = 7,247,512.67/4,255.40
  6. Step 6: Final answer
    x = 1,703.13

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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.