Home / 1,481.24-2,043.66-860.12

Finding the Fourth Proportional to 1,481.24, 2,043.66 and 860.12

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Solution

The fourth proportional to 1,481.24, 2,043.66 and 860.12 is: 1,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.24 : 2,043.66 = 860.12 : x
  2. Step 2: Convert to fraction form
    1,481.24/2,043.66 = 860.12/x
  3. Step 3: Cross multiply
    1,481.24x = 2,043.66 × 860.12
  4. Step 4: Simplify right side
    1,481.24x = 1,757,792.84
  5. Step 5: Solve for x
    x = 1,757,792.84/1,481.24
  6. Step 6: Final answer
    x = 1,186.70

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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.