Home / 2,027.16-3,040.31-931.28

Finding the Fourth Proportional to 2,027.16, 3,040.31 and 931.28

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Solution

The fourth proportional to 2,027.16, 3,040.31 and 931.28 is: 1,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.16 : 3,040.31 = 931.28 : x
  2. Step 2: Convert to fraction form
    2,027.16/3,040.31 = 931.28/x
  3. Step 3: Cross multiply
    2,027.16x = 3,040.31 × 931.28
  4. Step 4: Simplify right side
    2,027.16x = 2,831,360.04
  5. Step 5: Solve for x
    x = 2,831,360.04/2,027.16
  6. Step 6: Final answer
    x = 1,396.71

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1.5x scale

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.