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Finding the Fourth Proportional to 1,999.28, 2,995.58 and 1,769.65

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Solution

The fourth proportional to 1,999.28, 2,995.58 and 1,769.65 is: 2,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.28 : 2,995.58 = 1,769.65 : x
  2. Step 2: Convert to fraction form
    1,999.28/2,995.58 = 1,769.65/x
  3. Step 3: Cross multiply
    1,999.28x = 2,995.58 × 1,769.65
  4. Step 4: Simplify right side
    1,999.28x = 5,301,125.08
  5. Step 5: Solve for x
    x = 5,301,125.08/1,999.28
  6. Step 6: Final answer
    x = 2,651.51

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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.