Home / 2,428.30-3,640.65-966.70

Finding the Fourth Proportional to 2,428.30, 3,640.65 and 966.70

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Solution

The fourth proportional to 2,428.30, 3,640.65 and 966.70 is: 1,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.30 : 3,640.65 = 966.70 : x
  2. Step 2: Convert to fraction form
    2,428.30/3,640.65 = 966.70/x
  3. Step 3: Cross multiply
    2,428.30x = 3,640.65 × 966.70
  4. Step 4: Simplify right side
    2,428.30x = 3,519,416.36
  5. Step 5: Solve for x
    x = 3,519,416.36/2,428.30
  6. Step 6: Final answer
    x = 1,449.33

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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.