Home / 1,954.16-2,931.14-493.23

Finding the Fourth Proportional to 1,954.16, 2,931.14 and 493.23

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Solution

The fourth proportional to 1,954.16, 2,931.14 and 493.23 is: 739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.16 : 2,931.14 = 493.23 : x
  2. Step 2: Convert to fraction form
    1,954.16/2,931.14 = 493.23/x
  3. Step 3: Cross multiply
    1,954.16x = 2,931.14 × 493.23
  4. Step 4: Simplify right side
    1,954.16x = 1,445,723.72
  5. Step 5: Solve for x
    x = 1,445,723.72/1,954.16
  6. Step 6: Final answer
    x = 739.82

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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.