Home / 3,423.49-5,135.56-1,575.12

Finding the Fourth Proportional to 3,423.49, 5,135.56 and 1,575.12

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Solution

The fourth proportional to 3,423.49, 5,135.56 and 1,575.12 is: 2,362.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.49 : 5,135.56 = 1,575.12 : x
  2. Step 2: Convert to fraction form
    3,423.49/5,135.56 = 1,575.12/x
  3. Step 3: Cross multiply
    3,423.49x = 5,135.56 × 1,575.12
  4. Step 4: Simplify right side
    3,423.49x = 8,089,123.27
  5. Step 5: Solve for x
    x = 8,089,123.27/3,423.49
  6. Step 6: Final answer
    x = 2,362.83

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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.