Home / 3,421.10-5,129.26-1,751.12

Finding the Fourth Proportional to 3,421.10, 5,129.26 and 1,751.12

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Solution

The fourth proportional to 3,421.10, 5,129.26 and 1,751.12 is: 2,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.10 : 5,129.26 = 1,751.12 : x
  2. Step 2: Convert to fraction form
    3,421.10/5,129.26 = 1,751.12/x
  3. Step 3: Cross multiply
    3,421.10x = 5,129.26 × 1,751.12
  4. Step 4: Simplify right side
    3,421.10x = 8,981,938.98
  5. Step 5: Solve for x
    x = 8,981,938.98/3,421.10
  6. Step 6: Final answer
    x = 2,625.45

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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.