Home / 3,430.90-4,729.68-2,249.92

Finding the Fourth Proportional to 3,430.90, 4,729.68 and 2,249.92

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Solution

The fourth proportional to 3,430.90, 4,729.68 and 2,249.92 is: 3,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.90 : 4,729.68 = 2,249.92 : x
  2. Step 2: Convert to fraction form
    3,430.90/4,729.68 = 2,249.92/x
  3. Step 3: Cross multiply
    3,430.90x = 4,729.68 × 2,249.92
  4. Step 4: Simplify right side
    3,430.90x = 10,641,401.63
  5. Step 5: Solve for x
    x = 10,641,401.63/3,430.90
  6. Step 6: Final answer
    x = 3,101.64

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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.