Home / 3,395.75-5,090.13-1,931.81

Finding the Fourth Proportional to 3,395.75, 5,090.13 and 1,931.81

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Solution

The fourth proportional to 3,395.75, 5,090.13 and 1,931.81 is: 2,895.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.75 : 5,090.13 = 1,931.81 : x
  2. Step 2: Convert to fraction form
    3,395.75/5,090.13 = 1,931.81/x
  3. Step 3: Cross multiply
    3,395.75x = 5,090.13 × 1,931.81
  4. Step 4: Simplify right side
    3,395.75x = 9,833,138.58
  5. Step 5: Solve for x
    x = 9,833,138.58/3,395.75
  6. Step 6: Final answer
    x = 2,895.72

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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.