Home / 1,589.70-2,193.80-926.95

Finding the Fourth Proportional to 1,589.70, 2,193.80 and 926.95

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Solution

The fourth proportional to 1,589.70, 2,193.80 and 926.95 is: 1,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.70 : 2,193.80 = 926.95 : x
  2. Step 2: Convert to fraction form
    1,589.70/2,193.80 = 926.95/x
  3. Step 3: Cross multiply
    1,589.70x = 2,193.80 × 926.95
  4. Step 4: Simplify right side
    1,589.70x = 2,033,538.28
  5. Step 5: Solve for x
    x = 2,033,538.28/1,589.70
  6. Step 6: Final answer
    x = 1,279.20

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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.