Home / 1,567.25-2,162.77-1,007.92

Finding the Fourth Proportional to 1,567.25, 2,162.77 and 1,007.92

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Solution

The fourth proportional to 1,567.25, 2,162.77 and 1,007.92 is: 1,390.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.25 : 2,162.77 = 1,007.92 : x
  2. Step 2: Convert to fraction form
    1,567.25/2,162.77 = 1,007.92/x
  3. Step 3: Cross multiply
    1,567.25x = 2,162.77 × 1,007.92
  4. Step 4: Simplify right side
    1,567.25x = 2,179,899.14
  5. Step 5: Solve for x
    x = 2,179,899.14/1,567.25
  6. Step 6: Final answer
    x = 1,390.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.