Home / 1,589.69-2,193.75-926.91

Finding the Fourth Proportional to 1,589.69, 2,193.75 and 926.91

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Solution

The fourth proportional to 1,589.69, 2,193.75 and 926.91 is: 1,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.69 : 2,193.75 = 926.91 : x
  2. Step 2: Convert to fraction form
    1,589.69/2,193.75 = 926.91/x
  3. Step 3: Cross multiply
    1,589.69x = 2,193.75 × 926.91
  4. Step 4: Simplify right side
    1,589.69x = 2,033,408.81
  5. Step 5: Solve for x
    x = 2,033,408.81/1,589.69
  6. Step 6: Final answer
    x = 1,279.12

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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.