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Finding the Fourth Proportional to 2,601.71, 3,903.93 and 1,140.51

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Solution

The fourth proportional to 2,601.71, 3,903.93 and 1,140.51 is: 1,711.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.71 : 3,903.93 = 1,140.51 : x
  2. Step 2: Convert to fraction form
    2,601.71/3,903.93 = 1,140.51/x
  3. Step 3: Cross multiply
    2,601.71x = 3,903.93 × 1,140.51
  4. Step 4: Simplify right side
    2,601.71x = 4,452,471.20
  5. Step 5: Solve for x
    x = 4,452,471.20/2,601.71
  6. Step 6: Final answer
    x = 1,711.37

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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.