Home / 1,589.15-2,382.30-808.71

Finding the Fourth Proportional to 1,589.15, 2,382.30 and 808.71

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Solution

The fourth proportional to 1,589.15, 2,382.30 and 808.71 is: 1,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.15 : 2,382.30 = 808.71 : x
  2. Step 2: Convert to fraction form
    1,589.15/2,382.30 = 808.71/x
  3. Step 3: Cross multiply
    1,589.15x = 2,382.30 × 808.71
  4. Step 4: Simplify right side
    1,589.15x = 1,926,589.83
  5. Step 5: Solve for x
    x = 1,926,589.83/1,589.15
  6. Step 6: Final answer
    x = 1,212.34

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1.5x scale

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.