Home / 1,485.15-2,226.12-834.51

Finding the Fourth Proportional to 1,485.15, 2,226.12 and 834.51

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Solution

The fourth proportional to 1,485.15, 2,226.12 and 834.51 is: 1,250.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.15 : 2,226.12 = 834.51 : x
  2. Step 2: Convert to fraction form
    1,485.15/2,226.12 = 834.51/x
  3. Step 3: Cross multiply
    1,485.15x = 2,226.12 × 834.51
  4. Step 4: Simplify right side
    1,485.15x = 1,857,719.40
  5. Step 5: Solve for x
    x = 1,857,719.40/1,485.15
  6. Step 6: Final answer
    x = 1,250.86

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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.