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Finding the Fourth Proportional to 2,639.42, 3,642.29 and 1,460.42

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Solution

The fourth proportional to 2,639.42, 3,642.29 and 1,460.42 is: 2,015.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.42 : 3,642.29 = 1,460.42 : x
  2. Step 2: Convert to fraction form
    2,639.42/3,642.29 = 1,460.42/x
  3. Step 3: Cross multiply
    2,639.42x = 3,642.29 × 1,460.42
  4. Step 4: Simplify right side
    2,639.42x = 5,319,247.65
  5. Step 5: Solve for x
    x = 5,319,247.65/2,639.42
  6. Step 6: Final answer
    x = 2,015.31

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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.