Home / 2,979.53-4,111.76-1,653.26

Finding the Fourth Proportional to 2,979.53, 4,111.76 and 1,653.26

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Solution

The fourth proportional to 2,979.53, 4,111.76 and 1,653.26 is: 2,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.53 : 4,111.76 = 1,653.26 : x
  2. Step 2: Convert to fraction form
    2,979.53/4,111.76 = 1,653.26/x
  3. Step 3: Cross multiply
    2,979.53x = 4,111.76 × 1,653.26
  4. Step 4: Simplify right side
    2,979.53x = 6,797,791.91
  5. Step 5: Solve for x
    x = 6,797,791.91/2,979.53
  6. Step 6: Final answer
    x = 2,281.50

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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.