Home / 3,445.85-5,171.78-1,803.56

Finding the Fourth Proportional to 3,445.85, 5,171.78 and 1,803.56

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Solution

The fourth proportional to 3,445.85, 5,171.78 and 1,803.56 is: 2,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.85 : 5,171.78 = 1,803.56 : x
  2. Step 2: Convert to fraction form
    3,445.85/5,171.78 = 1,803.56/x
  3. Step 3: Cross multiply
    3,445.85x = 5,171.78 × 1,803.56
  4. Step 4: Simplify right side
    3,445.85x = 9,327,594.19
  5. Step 5: Solve for x
    x = 9,327,594.19/3,445.85
  6. Step 6: Final answer
    x = 2,706.90

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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.