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Finding the Fourth Proportional to 1,134.67, 1,701.57 and 648.67

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Solution

The fourth proportional to 1,134.67, 1,701.57 and 648.67 is: 972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.67 : 1,701.57 = 648.67 : x
  2. Step 2: Convert to fraction form
    1,134.67/1,701.57 = 648.67/x
  3. Step 3: Cross multiply
    1,134.67x = 1,701.57 × 648.67
  4. Step 4: Simplify right side
    1,134.67x = 1,103,757.41
  5. Step 5: Solve for x
    x = 1,103,757.41/1,134.67
  6. Step 6: Final answer
    x = 972.76

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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.