Home / 1,954.90-2,928.25-1,335.71

Finding the Fourth Proportional to 1,954.90, 2,928.25 and 1,335.71

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Solution

The fourth proportional to 1,954.90, 2,928.25 and 1,335.71 is: 2,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.90 : 2,928.25 = 1,335.71 : x
  2. Step 2: Convert to fraction form
    1,954.90/2,928.25 = 1,335.71/x
  3. Step 3: Cross multiply
    1,954.90x = 2,928.25 × 1,335.71
  4. Step 4: Simplify right side
    1,954.90x = 3,911,274.83
  5. Step 5: Solve for x
    x = 3,911,274.83/1,954.90
  6. Step 6: Final answer
    x = 2,000.76

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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.