Home / 2,251.71-3,108.75-1,455.45

Finding the Fourth Proportional to 2,251.71, 3,108.75 and 1,455.45

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Solution

The fourth proportional to 2,251.71, 3,108.75 and 1,455.45 is: 2,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.71 : 3,108.75 = 1,455.45 : x
  2. Step 2: Convert to fraction form
    2,251.71/3,108.75 = 1,455.45/x
  3. Step 3: Cross multiply
    2,251.71x = 3,108.75 × 1,455.45
  4. Step 4: Simplify right side
    2,251.71x = 4,524,630.19
  5. Step 5: Solve for x
    x = 4,524,630.19/2,251.71
  6. Step 6: Final answer
    x = 2,009.42

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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.