Home / 4,639.54-6,400.20-3,147.52

Finding the Fourth Proportional to 4,639.54, 6,400.20 and 3,147.52

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Solution

The fourth proportional to 4,639.54, 6,400.20 and 3,147.52 is: 4,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.54 : 6,400.20 = 3,147.52 : x
  2. Step 2: Convert to fraction form
    4,639.54/6,400.20 = 3,147.52/x
  3. Step 3: Cross multiply
    4,639.54x = 6,400.20 × 3,147.52
  4. Step 4: Simplify right side
    4,639.54x = 20,144,757.50
  5. Step 5: Solve for x
    x = 20,144,757.50/4,639.54
  6. Step 6: Final answer
    x = 4,341.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.