Home / 2,015.64-3,023.22-919.71

Finding the Fourth Proportional to 2,015.64, 3,023.22 and 919.71

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Solution

The fourth proportional to 2,015.64, 3,023.22 and 919.71 is: 1,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.64 : 3,023.22 = 919.71 : x
  2. Step 2: Convert to fraction form
    2,015.64/3,023.22 = 919.71/x
  3. Step 3: Cross multiply
    2,015.64x = 3,023.22 × 919.71
  4. Step 4: Simplify right side
    2,015.64x = 2,780,485.67
  5. Step 5: Solve for x
    x = 2,780,485.67/2,015.64
  6. Step 6: Final answer
    x = 1,379.46

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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.