Home / 2,977.25-4,108.40-1,718.36

Finding the Fourth Proportional to 2,977.25, 4,108.40 and 1,718.36

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Solution

The fourth proportional to 2,977.25, 4,108.40 and 1,718.36 is: 2,371.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.25 : 4,108.40 = 1,718.36 : x
  2. Step 2: Convert to fraction form
    2,977.25/4,108.40 = 1,718.36/x
  3. Step 3: Cross multiply
    2,977.25x = 4,108.40 × 1,718.36
  4. Step 4: Simplify right side
    2,977.25x = 7,059,681.09
  5. Step 5: Solve for x
    x = 7,059,681.09/2,977.25
  6. Step 6: Final answer
    x = 2,371.21

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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.