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Finding the Fourth Proportional to 1,335.57, 2,001.62 and 966.62

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Solution

The fourth proportional to 1,335.57, 2,001.62 and 966.62 is: 1,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.57 : 2,001.62 = 966.62 : x
  2. Step 2: Convert to fraction form
    1,335.57/2,001.62 = 966.62/x
  3. Step 3: Cross multiply
    1,335.57x = 2,001.62 × 966.62
  4. Step 4: Simplify right side
    1,335.57x = 1,934,805.92
  5. Step 5: Solve for x
    x = 1,934,805.92/1,335.57
  6. Step 6: Final answer
    x = 1,448.67

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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.