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Finding the Fourth Proportional to 2,749.68, 4,124.54 and 803.24

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Solution

The fourth proportional to 2,749.68, 4,124.54 and 803.24 is: 1,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.68 : 4,124.54 = 803.24 : x
  2. Step 2: Convert to fraction form
    2,749.68/4,124.54 = 803.24/x
  3. Step 3: Cross multiply
    2,749.68x = 4,124.54 × 803.24
  4. Step 4: Simplify right side
    2,749.68x = 3,312,995.51
  5. Step 5: Solve for x
    x = 3,312,995.51/2,749.68
  6. Step 6: Final answer
    x = 1,204.87

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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.