Home / 1,941.20-2,909.97-966.38

Finding the Fourth Proportional to 1,941.20, 2,909.97 and 966.38

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Solution

The fourth proportional to 1,941.20, 2,909.97 and 966.38 is: 1,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.20 : 2,909.97 = 966.38 : x
  2. Step 2: Convert to fraction form
    1,941.20/2,909.97 = 966.38/x
  3. Step 3: Cross multiply
    1,941.20x = 2,909.97 × 966.38
  4. Step 4: Simplify right side
    1,941.20x = 2,812,136.81
  5. Step 5: Solve for x
    x = 2,812,136.81/1,941.20
  6. Step 6: Final answer
    x = 1,448.66

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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.