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Finding the Fourth Proportional to 2,703, 4,053.68 and 1,403.76

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Solution

The fourth proportional to 2,703, 4,053.68 and 1,403.76 is: 2,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703 : 4,053.68 = 1,403.76 : x
  2. Step 2: Convert to fraction form
    2,703/4,053.68 = 1,403.76/x
  3. Step 3: Cross multiply
    2,703x = 4,053.68 × 1,403.76
  4. Step 4: Simplify right side
    2,703x = 5,690,393.84
  5. Step 5: Solve for x
    x = 5,690,393.84/2,703
  6. Step 6: Final answer
    x = 2,105.21

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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.