Home / 2,258.79-3,393.65-1,438.66

Finding the Fourth Proportional to 2,258.79, 3,393.65 and 1,438.66

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Solution

The fourth proportional to 2,258.79, 3,393.65 and 1,438.66 is: 2,161.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.79 : 3,393.65 = 1,438.66 : x
  2. Step 2: Convert to fraction form
    2,258.79/3,393.65 = 1,438.66/x
  3. Step 3: Cross multiply
    2,258.79x = 3,393.65 × 1,438.66
  4. Step 4: Simplify right side
    2,258.79x = 4,882,308.26
  5. Step 5: Solve for x
    x = 4,882,308.26/2,258.79
  6. Step 6: Final answer
    x = 2,161.47

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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.