Home / 7,434.20-11,149.70-3,274.20

Finding the Fourth Proportional to 7,434.20, 11,149.70 and 3,274.20

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Solution

The fourth proportional to 7,434.20, 11,149.70 and 3,274.20 is: 4,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434.20 : 11,149.70 = 3,274.20 : x
  2. Step 2: Convert to fraction form
    7,434.20/11,149.70 = 3,274.20/x
  3. Step 3: Cross multiply
    7,434.20x = 11,149.70 × 3,274.20
  4. Step 4: Simplify right side
    7,434.20x = 36,506,347.74
  5. Step 5: Solve for x
    x = 36,506,347.74/7,434.20
  6. Step 6: Final answer
    x = 4,910.60

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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.