Home / 2,251.12-3,106.93-1,663.36

Finding the Fourth Proportional to 2,251.12, 3,106.93 and 1,663.36

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Solution

The fourth proportional to 2,251.12, 3,106.93 and 1,663.36 is: 2,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.12 : 3,106.93 = 1,663.36 : x
  2. Step 2: Convert to fraction form
    2,251.12/3,106.93 = 1,663.36/x
  3. Step 3: Cross multiply
    2,251.12x = 3,106.93 × 1,663.36
  4. Step 4: Simplify right side
    2,251.12x = 5,167,943.08
  5. Step 5: Solve for x
    x = 5,167,943.08/2,251.12
  6. Step 6: Final answer
    x = 2,295.72

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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.