Home / 3,173.18-4,759.97-981.72

Finding the Fourth Proportional to 3,173.18, 4,759.97 and 981.72

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Solution

The fourth proportional to 3,173.18, 4,759.97 and 981.72 is: 1,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.18 : 4,759.97 = 981.72 : x
  2. Step 2: Convert to fraction form
    3,173.18/4,759.97 = 981.72/x
  3. Step 3: Cross multiply
    3,173.18x = 4,759.97 × 981.72
  4. Step 4: Simplify right side
    3,173.18x = 4,672,952.84
  5. Step 5: Solve for x
    x = 4,672,952.84/3,173.18
  6. Step 6: Final answer
    x = 1,472.64

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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.