Home / 2,187.80-3,278.60-1,537.16

Finding the Fourth Proportional to 2,187.80, 3,278.60 and 1,537.16

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Solution

The fourth proportional to 2,187.80, 3,278.60 and 1,537.16 is: 2,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.80 : 3,278.60 = 1,537.16 : x
  2. Step 2: Convert to fraction form
    2,187.80/3,278.60 = 1,537.16/x
  3. Step 3: Cross multiply
    2,187.80x = 3,278.60 × 1,537.16
  4. Step 4: Simplify right side
    2,187.80x = 5,039,732.78
  5. Step 5: Solve for x
    x = 5,039,732.78/2,187.80
  6. Step 6: Final answer
    x = 2,303.56

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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.