Home / 2,567.23-3,857.67-1,398.08

Finding the Fourth Proportional to 2,567.23, 3,857.67 and 1,398.08

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Solution

The fourth proportional to 2,567.23, 3,857.67 and 1,398.08 is: 2,100.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,567.23 : 3,857.67 = 1,398.08 : x
  2. Step 2: Convert to fraction form
    2,567.23/3,857.67 = 1,398.08/x
  3. Step 3: Cross multiply
    2,567.23x = 3,857.67 × 1,398.08
  4. Step 4: Simplify right side
    2,567.23x = 5,393,340.92
  5. Step 5: Solve for x
    x = 5,393,340.92/2,567.23
  6. Step 6: Final answer
    x = 2,100.84

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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.