Home / 3,108.76-4,686.97-2,897.28

Finding the Fourth Proportional to 3,108.76, 4,686.97 and 2,897.28

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Solution

The fourth proportional to 3,108.76, 4,686.97 and 2,897.28 is: 4,368.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.76 : 4,686.97 = 2,897.28 : x
  2. Step 2: Convert to fraction form
    3,108.76/4,686.97 = 2,897.28/x
  3. Step 3: Cross multiply
    3,108.76x = 4,686.97 × 2,897.28
  4. Step 4: Simplify right side
    3,108.76x = 13,579,464.44
  5. Step 5: Solve for x
    x = 13,579,464.44/3,108.76
  6. Step 6: Final answer
    x = 4,368.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.