Home / 2,901.28-4,003.32-1,906.96

Finding the Fourth Proportional to 2,901.28, 4,003.32 and 1,906.96

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Solution

The fourth proportional to 2,901.28, 4,003.32 and 1,906.96 is: 2,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.28 : 4,003.32 = 1,906.96 : x
  2. Step 2: Convert to fraction form
    2,901.28/4,003.32 = 1,906.96/x
  3. Step 3: Cross multiply
    2,901.28x = 4,003.32 × 1,906.96
  4. Step 4: Simplify right side
    2,901.28x = 7,634,171.11
  5. Step 5: Solve for x
    x = 7,634,171.11/2,901.28
  6. Step 6: Final answer
    x = 2,631.31

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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.