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Finding the Fourth Proportional to 2,601.08, 3,901.03 and 751.78

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Solution

The fourth proportional to 2,601.08, 3,901.03 and 751.78 is: 1,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.08 : 3,901.03 = 751.78 : x
  2. Step 2: Convert to fraction form
    2,601.08/3,901.03 = 751.78/x
  3. Step 3: Cross multiply
    2,601.08x = 3,901.03 × 751.78
  4. Step 4: Simplify right side
    2,601.08x = 2,932,693.07
  5. Step 5: Solve for x
    x = 2,932,693.07/2,601.08
  6. Step 6: Final answer
    x = 1,127.49

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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.