Home / 1,589.91-2,196.19-1,325.22

Finding the Fourth Proportional to 1,589.91, 2,196.19 and 1,325.22

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Solution

The fourth proportional to 1,589.91, 2,196.19 and 1,325.22 is: 1,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.91 : 2,196.19 = 1,325.22 : x
  2. Step 2: Convert to fraction form
    1,589.91/2,196.19 = 1,325.22/x
  3. Step 3: Cross multiply
    1,589.91x = 2,196.19 × 1,325.22
  4. Step 4: Simplify right side
    1,589.91x = 2,910,440.05
  5. Step 5: Solve for x
    x = 2,910,440.05/1,589.91
  6. Step 6: Final answer
    x = 1,830.57

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Half scale
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Double scale
Find fourth proportional to 1,590.91, 2,197.57 and 1,326.22
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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.