Home / 1,954.09-2,931.12-493.25

Finding the Fourth Proportional to 1,954.09, 2,931.12 and 493.25

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Solution

The fourth proportional to 1,954.09, 2,931.12 and 493.25 is: 739.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.09 : 2,931.12 = 493.25 : x
  2. Step 2: Convert to fraction form
    1,954.09/2,931.12 = 493.25/x
  3. Step 3: Cross multiply
    1,954.09x = 2,931.12 × 493.25
  4. Step 4: Simplify right side
    1,954.09x = 1,445,760.28
  5. Step 5: Solve for x
    x = 1,445,760.28/1,954.09
  6. Step 6: Final answer
    x = 739.86

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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.