Home / 2,639.86-3,642.78-1,460.64

Finding the Fourth Proportional to 2,639.86, 3,642.78 and 1,460.64

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Solution

The fourth proportional to 2,639.86, 3,642.78 and 1,460.64 is: 2,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.86 : 3,642.78 = 1,460.64 : x
  2. Step 2: Convert to fraction form
    2,639.86/3,642.78 = 1,460.64/x
  3. Step 3: Cross multiply
    2,639.86x = 3,642.78 × 1,460.64
  4. Step 4: Simplify right side
    2,639.86x = 5,320,790.18
  5. Step 5: Solve for x
    x = 5,320,790.18/2,639.86
  6. Step 6: Final answer
    x = 2,015.56

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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.