Home / 1,566.15-2,161.25-857.97

Finding the Fourth Proportional to 1,566.15, 2,161.25 and 857.97

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Solution

The fourth proportional to 1,566.15, 2,161.25 and 857.97 is: 1,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.15 : 2,161.25 = 857.97 : x
  2. Step 2: Convert to fraction form
    1,566.15/2,161.25 = 857.97/x
  3. Step 3: Cross multiply
    1,566.15x = 2,161.25 × 857.97
  4. Step 4: Simplify right side
    1,566.15x = 1,854,287.66
  5. Step 5: Solve for x
    x = 1,854,287.66/1,566.15
  6. Step 6: Final answer
    x = 1,183.98

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1.5x scale

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.