Home / 2,203.07-3,040.34-1,318.71

Finding the Fourth Proportional to 2,203.07, 3,040.34 and 1,318.71

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Solution

The fourth proportional to 2,203.07, 3,040.34 and 1,318.71 is: 1,819.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.07 : 3,040.34 = 1,318.71 : x
  2. Step 2: Convert to fraction form
    2,203.07/3,040.34 = 1,318.71/x
  3. Step 3: Cross multiply
    2,203.07x = 3,040.34 × 1,318.71
  4. Step 4: Simplify right side
    2,203.07x = 4,009,326.76
  5. Step 5: Solve for x
    x = 4,009,326.76/2,203.07
  6. Step 6: Final answer
    x = 1,819.88

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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.