Home / 1,485.11-2,226.33-834.47

Finding the Fourth Proportional to 1,485.11, 2,226.33 and 834.47

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Solution

The fourth proportional to 1,485.11, 2,226.33 and 834.47 is: 1,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.11 : 2,226.33 = 834.47 : x
  2. Step 2: Convert to fraction form
    1,485.11/2,226.33 = 834.47/x
  3. Step 3: Cross multiply
    1,485.11x = 2,226.33 × 834.47
  4. Step 4: Simplify right side
    1,485.11x = 1,857,794.46
  5. Step 5: Solve for x
    x = 1,857,794.46/1,485.11
  6. Step 6: Final answer
    x = 1,250.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.