Home / 1,811.96-2,500.44-1,015.28

Finding the Fourth Proportional to 1,811.96, 2,500.44 and 1,015.28

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Solution

The fourth proportional to 1,811.96, 2,500.44 and 1,015.28 is: 1,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.96 : 2,500.44 = 1,015.28 : x
  2. Step 2: Convert to fraction form
    1,811.96/2,500.44 = 1,015.28/x
  3. Step 3: Cross multiply
    1,811.96x = 2,500.44 × 1,015.28
  4. Step 4: Simplify right side
    1,811.96x = 2,538,646.72
  5. Step 5: Solve for x
    x = 2,538,646.72/1,811.96
  6. Step 6: Final answer
    x = 1,401.05

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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.