Home / 2,901.05-4,002.79-1,958.60

Finding the Fourth Proportional to 2,901.05, 4,002.79 and 1,958.60

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Solution

The fourth proportional to 2,901.05, 4,002.79 and 1,958.60 is: 2,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.05 : 4,002.79 = 1,958.60 : x
  2. Step 2: Convert to fraction form
    2,901.05/4,002.79 = 1,958.60/x
  3. Step 3: Cross multiply
    2,901.05x = 4,002.79 × 1,958.60
  4. Step 4: Simplify right side
    2,901.05x = 7,839,839.58
  5. Step 5: Solve for x
    x = 7,839,839.58/2,901.05
  6. Step 6: Final answer
    x = 2,702.41

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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.