Home / 1,589.35-2,193.19-890.59

Finding the Fourth Proportional to 1,589.35, 2,193.19 and 890.59

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Solution

The fourth proportional to 1,589.35, 2,193.19 and 890.59 is: 1,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.35 : 2,193.19 = 890.59 : x
  2. Step 2: Convert to fraction form
    1,589.35/2,193.19 = 890.59/x
  3. Step 3: Cross multiply
    1,589.35x = 2,193.19 × 890.59
  4. Step 4: Simplify right side
    1,589.35x = 1,953,233.08
  5. Step 5: Solve for x
    x = 1,953,233.08/1,589.35
  6. Step 6: Final answer
    x = 1,228.95

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Half scale
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Double scale
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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.