Home / 2,154.90-3,232.17-693.66

Finding the Fourth Proportional to 2,154.90, 3,232.17 and 693.66

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Solution

The fourth proportional to 2,154.90, 3,232.17 and 693.66 is: 1,040.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.90 : 3,232.17 = 693.66 : x
  2. Step 2: Convert to fraction form
    2,154.90/3,232.17 = 693.66/x
  3. Step 3: Cross multiply
    2,154.90x = 3,232.17 × 693.66
  4. Step 4: Simplify right side
    2,154.90x = 2,242,027.04
  5. Step 5: Solve for x
    x = 2,242,027.04/2,154.90
  6. Step 6: Final answer
    x = 1,040.43

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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.