Home / 2,226.71-3,342.08-1,187.59

Finding the Fourth Proportional to 2,226.71, 3,342.08 and 1,187.59

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Solution

The fourth proportional to 2,226.71, 3,342.08 and 1,187.59 is: 1,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.71 : 3,342.08 = 1,187.59 : x
  2. Step 2: Convert to fraction form
    2,226.71/3,342.08 = 1,187.59/x
  3. Step 3: Cross multiply
    2,226.71x = 3,342.08 × 1,187.59
  4. Step 4: Simplify right side
    2,226.71x = 3,969,020.79
  5. Step 5: Solve for x
    x = 3,969,020.79/2,226.71
  6. Step 6: Final answer
    x = 1,782.46

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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.