Home / 2,562.51-3,841.36-1,390.79

Finding the Fourth Proportional to 2,562.51, 3,841.36 and 1,390.79

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Solution

The fourth proportional to 2,562.51, 3,841.36 and 1,390.79 is: 2,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,562.51 : 3,841.36 = 1,390.79 : x
  2. Step 2: Convert to fraction form
    2,562.51/3,841.36 = 1,390.79/x
  3. Step 3: Cross multiply
    2,562.51x = 3,841.36 × 1,390.79
  4. Step 4: Simplify right side
    2,562.51x = 5,342,518.12
  5. Step 5: Solve for x
    x = 5,342,518.12/2,562.51
  6. Step 6: Final answer
    x = 2,084.88

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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.