Home / 2,156.40-3,233.16-923.49

Finding the Fourth Proportional to 2,156.40, 3,233.16 and 923.49

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Solution

The fourth proportional to 2,156.40, 3,233.16 and 923.49 is: 1,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.40 : 3,233.16 = 923.49 : x
  2. Step 2: Convert to fraction form
    2,156.40/3,233.16 = 923.49/x
  3. Step 3: Cross multiply
    2,156.40x = 3,233.16 × 923.49
  4. Step 4: Simplify right side
    2,156.40x = 2,985,790.93
  5. Step 5: Solve for x
    x = 2,985,790.93/2,156.40
  6. Step 6: Final answer
    x = 1,384.62

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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.