Home / 3,423.40-5,131.62-1,475.08

Finding the Fourth Proportional to 3,423.40, 5,131.62 and 1,475.08

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Solution

The fourth proportional to 3,423.40, 5,131.62 and 1,475.08 is: 2,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.40 : 5,131.62 = 1,475.08 : x
  2. Step 2: Convert to fraction form
    3,423.40/5,131.62 = 1,475.08/x
  3. Step 3: Cross multiply
    3,423.40x = 5,131.62 × 1,475.08
  4. Step 4: Simplify right side
    3,423.40x = 7,569,550.03
  5. Step 5: Solve for x
    x = 7,569,550.03/3,423.40
  6. Step 6: Final answer
    x = 2,211.12

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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.