Home / 6,971.51-9,620.70-3,827.90

Finding the Fourth Proportional to 6,971.51, 9,620.70 and 3,827.90

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Solution

The fourth proportional to 6,971.51, 9,620.70 and 3,827.90 is: 5,282.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.51 : 9,620.70 = 3,827.90 : x
  2. Step 2: Convert to fraction form
    6,971.51/9,620.70 = 3,827.90/x
  3. Step 3: Cross multiply
    6,971.51x = 9,620.70 × 3,827.90
  4. Step 4: Simplify right side
    6,971.51x = 36,827,077.53
  5. Step 5: Solve for x
    x = 36,827,077.53/6,971.51
  6. Step 6: Final answer
    x = 5,282.51

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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.