Home / 3,506.20-5,259.72-1,425.76

Finding the Fourth Proportional to 3,506.20, 5,259.72 and 1,425.76

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Solution

The fourth proportional to 3,506.20, 5,259.72 and 1,425.76 is: 2,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.20 : 5,259.72 = 1,425.76 : x
  2. Step 2: Convert to fraction form
    3,506.20/5,259.72 = 1,425.76/x
  3. Step 3: Cross multiply
    3,506.20x = 5,259.72 × 1,425.76
  4. Step 4: Simplify right side
    3,506.20x = 7,499,098.39
  5. Step 5: Solve for x
    x = 7,499,098.39/3,506.20
  6. Step 6: Final answer
    x = 2,138.81

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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.