Home / 1,374.15-2,057.55-723.51

Finding the Fourth Proportional to 1,374.15, 2,057.55 and 723.51

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Solution

The fourth proportional to 1,374.15, 2,057.55 and 723.51 is: 1,083.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.15 : 2,057.55 = 723.51 : x
  2. Step 2: Convert to fraction form
    1,374.15/2,057.55 = 723.51/x
  3. Step 3: Cross multiply
    1,374.15x = 2,057.55 × 723.51
  4. Step 4: Simplify right side
    1,374.15x = 1,488,658.00
  5. Step 5: Solve for x
    x = 1,488,658.00/1,374.15
  6. Step 6: Final answer
    x = 1,083.33

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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.