Home / 3,430.91-5,140.89-2,197.30

Finding the Fourth Proportional to 3,430.91, 5,140.89 and 2,197.30

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Solution

The fourth proportional to 3,430.91, 5,140.89 and 2,197.30 is: 3,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.91 : 5,140.89 = 2,197.30 : x
  2. Step 2: Convert to fraction form
    3,430.91/5,140.89 = 2,197.30/x
  3. Step 3: Cross multiply
    3,430.91x = 5,140.89 × 2,197.30
  4. Step 4: Simplify right side
    3,430.91x = 11,296,077.60
  5. Step 5: Solve for x
    x = 11,296,077.60/3,430.91
  6. Step 6: Final answer
    x = 3,292.44

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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.