Home / 3,158.22-4,737.33-849.78

Finding the Fourth Proportional to 3,158.22, 4,737.33 and 849.78

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Solution

The fourth proportional to 3,158.22, 4,737.33 and 849.78 is: 1,274.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.22 : 4,737.33 = 849.78 : x
  2. Step 2: Convert to fraction form
    3,158.22/4,737.33 = 849.78/x
  3. Step 3: Cross multiply
    3,158.22x = 4,737.33 × 849.78
  4. Step 4: Simplify right side
    3,158.22x = 4,025,688.29
  5. Step 5: Solve for x
    x = 4,025,688.29/3,158.22
  6. Step 6: Final answer
    x = 1,274.67

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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.