Home / 2,228.73-3,345.62-1,407.47

Finding the Fourth Proportional to 2,228.73, 3,345.62 and 1,407.47

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Solution

The fourth proportional to 2,228.73, 3,345.62 and 1,407.47 is: 2,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.73 : 3,345.62 = 1,407.47 : x
  2. Step 2: Convert to fraction form
    2,228.73/3,345.62 = 1,407.47/x
  3. Step 3: Cross multiply
    2,228.73x = 3,345.62 × 1,407.47
  4. Step 4: Simplify right side
    2,228.73x = 4,708,848.56
  5. Step 5: Solve for x
    x = 4,708,848.56/2,228.73
  6. Step 6: Final answer
    x = 2,112.79

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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.