Home / 4,985.12-6,878.54-3,097.22

Finding the Fourth Proportional to 4,985.12, 6,878.54 and 3,097.22

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Solution

The fourth proportional to 4,985.12, 6,878.54 and 3,097.22 is: 4,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.12 : 6,878.54 = 3,097.22 : x
  2. Step 2: Convert to fraction form
    4,985.12/6,878.54 = 3,097.22/x
  3. Step 3: Cross multiply
    4,985.12x = 6,878.54 × 3,097.22
  4. Step 4: Simplify right side
    4,985.12x = 21,304,351.66
  5. Step 5: Solve for x
    x = 21,304,351.66/4,985.12
  6. Step 6: Final answer
    x = 4,273.59

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1.5x scale

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.