Home / 3,423.66-5,135.36-2,380.59

Finding the Fourth Proportional to 3,423.66, 5,135.36 and 2,380.59

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Solution

The fourth proportional to 3,423.66, 5,135.36 and 2,380.59 is: 3,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.66 : 5,135.36 = 2,380.59 : x
  2. Step 2: Convert to fraction form
    3,423.66/5,135.36 = 2,380.59/x
  3. Step 3: Cross multiply
    3,423.66x = 5,135.36 × 2,380.59
  4. Step 4: Simplify right side
    3,423.66x = 12,225,174.76
  5. Step 5: Solve for x
    x = 12,225,174.76/3,423.66
  6. Step 6: Final answer
    x = 3,570.79

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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.