Home / 1,565.21-2,161.77-1,067.00

Finding the Fourth Proportional to 1,565.21, 2,161.77 and 1,067.00

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Solution

The fourth proportional to 1,565.21, 2,161.77 and 1,067.00 is: 1,473.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.21 : 2,161.77 = 1,067.00 : x
  2. Step 2: Convert to fraction form
    1,565.21/2,161.77 = 1,067.00/x
  3. Step 3: Cross multiply
    1,565.21x = 2,161.77 × 1,067.00
  4. Step 4: Simplify right side
    1,565.21x = 2,306,592.45
  5. Step 5: Solve for x
    x = 2,306,592.45/1,565.21
  6. Step 6: Final answer
    x = 1,473.66

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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.