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Finding the Fourth Proportional to 2,659.47, 3,986.84 and 1,341.51

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Solution

The fourth proportional to 2,659.47, 3,986.84 and 1,341.51 is: 2,011.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.47 : 3,986.84 = 1,341.51 : x
  2. Step 2: Convert to fraction form
    2,659.47/3,986.84 = 1,341.51/x
  3. Step 3: Cross multiply
    2,659.47x = 3,986.84 × 1,341.51
  4. Step 4: Simplify right side
    2,659.47x = 5,348,359.09
  5. Step 5: Solve for x
    x = 5,348,359.09/2,659.47
  6. Step 6: Final answer
    x = 2,011.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.