Home / 3,031.75-4,187.68-2,319.26

Finding the Fourth Proportional to 3,031.75, 4,187.68 and 2,319.26

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Solution

The fourth proportional to 3,031.75, 4,187.68 and 2,319.26 is: 3,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.75 : 4,187.68 = 2,319.26 : x
  2. Step 2: Convert to fraction form
    3,031.75/4,187.68 = 2,319.26/x
  3. Step 3: Cross multiply
    3,031.75x = 4,187.68 × 2,319.26
  4. Step 4: Simplify right side
    3,031.75x = 9,712,318.72
  5. Step 5: Solve for x
    x = 9,712,318.72/3,031.75
  6. Step 6: Final answer
    x = 3,203.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.