Home / 3,478.34-5,217.66-1,138.34

Finding the Fourth Proportional to 3,478.34, 5,217.66 and 1,138.34

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Solution

The fourth proportional to 3,478.34, 5,217.66 and 1,138.34 is: 1,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.34 : 5,217.66 = 1,138.34 : x
  2. Step 2: Convert to fraction form
    3,478.34/5,217.66 = 1,138.34/x
  3. Step 3: Cross multiply
    3,478.34x = 5,217.66 × 1,138.34
  4. Step 4: Simplify right side
    3,478.34x = 5,939,445.00
  5. Step 5: Solve for x
    x = 5,939,445.00/3,478.34
  6. Step 6: Final answer
    x = 1,707.55

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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.