Home / 2,155.26-3,234.17-922.67

Finding the Fourth Proportional to 2,155.26, 3,234.17 and 922.67

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Solution

The fourth proportional to 2,155.26, 3,234.17 and 922.67 is: 1,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.26 : 3,234.17 = 922.67 : x
  2. Step 2: Convert to fraction form
    2,155.26/3,234.17 = 922.67/x
  3. Step 3: Cross multiply
    2,155.26x = 3,234.17 × 922.67
  4. Step 4: Simplify right side
    2,155.26x = 2,984,055.46
  5. Step 5: Solve for x
    x = 2,984,055.46/2,155.26
  6. Step 6: Final answer
    x = 1,384.55

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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.