Home / 2,979.36-4,111.56-1,737.36

Finding the Fourth Proportional to 2,979.36, 4,111.56 and 1,737.36

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Solution

The fourth proportional to 2,979.36, 4,111.56 and 1,737.36 is: 2,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.36 : 4,111.56 = 1,737.36 : x
  2. Step 2: Convert to fraction form
    2,979.36/4,111.56 = 1,737.36/x
  3. Step 3: Cross multiply
    2,979.36x = 4,111.56 × 1,737.36
  4. Step 4: Simplify right side
    2,979.36x = 7,143,259.88
  5. Step 5: Solve for x
    x = 7,143,259.88/2,979.36
  6. Step 6: Final answer
    x = 2,397.58

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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.