Home / 3,429.60-5,143.48-1,697.76

Finding the Fourth Proportional to 3,429.60, 5,143.48 and 1,697.76

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Solution

The fourth proportional to 3,429.60, 5,143.48 and 1,697.76 is: 2,546.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.60 : 5,143.48 = 1,697.76 : x
  2. Step 2: Convert to fraction form
    3,429.60/5,143.48 = 1,697.76/x
  3. Step 3: Cross multiply
    3,429.60x = 5,143.48 × 1,697.76
  4. Step 4: Simplify right side
    3,429.60x = 8,732,394.60
  5. Step 5: Solve for x
    x = 8,732,394.60/3,429.60
  6. Step 6: Final answer
    x = 2,546.18

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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.