Home / 3,634.28-5,007.86-3,438.20

Finding the Fourth Proportional to 3,634.28, 5,007.86 and 3,438.20

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Solution

The fourth proportional to 3,634.28, 5,007.86 and 3,438.20 is: 4,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,634.28 : 5,007.86 = 3,438.20 : x
  2. Step 2: Convert to fraction form
    3,634.28/5,007.86 = 3,438.20/x
  3. Step 3: Cross multiply
    3,634.28x = 5,007.86 × 3,438.20
  4. Step 4: Simplify right side
    3,634.28x = 17,218,024.25
  5. Step 5: Solve for x
    x = 17,218,024.25/3,634.28
  6. Step 6: Final answer
    x = 4,737.67

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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.