Home / 2,015.32-2,778.23-1,415.99

Finding the Fourth Proportional to 2,015.32, 2,778.23 and 1,415.99

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Solution

The fourth proportional to 2,015.32, 2,778.23 and 1,415.99 is: 1,952.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.32 : 2,778.23 = 1,415.99 : x
  2. Step 2: Convert to fraction form
    2,015.32/2,778.23 = 1,415.99/x
  3. Step 3: Cross multiply
    2,015.32x = 2,778.23 × 1,415.99
  4. Step 4: Simplify right side
    2,015.32x = 3,933,945.90
  5. Step 5: Solve for x
    x = 3,933,945.90/2,015.32
  6. Step 6: Final answer
    x = 1,952.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.