Home / 1,589.32-2,191.80-1,091.08

Finding the Fourth Proportional to 1,589.32, 2,191.80 and 1,091.08

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Solution

The fourth proportional to 1,589.32, 2,191.80 and 1,091.08 is: 1,504.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.32 : 2,191.80 = 1,091.08 : x
  2. Step 2: Convert to fraction form
    1,589.32/2,191.80 = 1,091.08/x
  3. Step 3: Cross multiply
    1,589.32x = 2,191.80 × 1,091.08
  4. Step 4: Simplify right side
    1,589.32x = 2,391,429.14
  5. Step 5: Solve for x
    x = 2,391,429.14/1,589.32
  6. Step 6: Final answer
    x = 1,504.69

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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.