Home / 2,969.91-4,098.55-1,643.71

Finding the Fourth Proportional to 2,969.91, 4,098.55 and 1,643.71

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Solution

The fourth proportional to 2,969.91, 4,098.55 and 1,643.71 is: 2,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.91 : 4,098.55 = 1,643.71 : x
  2. Step 2: Convert to fraction form
    2,969.91/4,098.55 = 1,643.71/x
  3. Step 3: Cross multiply
    2,969.91x = 4,098.55 × 1,643.71
  4. Step 4: Simplify right side
    2,969.91x = 6,736,827.62
  5. Step 5: Solve for x
    x = 6,736,827.62/2,969.91
  6. Step 6: Final answer
    x = 2,268.36

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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.