Home / 3,975.66-5,486.13-2,207.19

Finding the Fourth Proportional to 3,975.66, 5,486.13 and 2,207.19

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Solution

The fourth proportional to 3,975.66, 5,486.13 and 2,207.19 is: 3,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.66 : 5,486.13 = 2,207.19 : x
  2. Step 2: Convert to fraction form
    3,975.66/5,486.13 = 2,207.19/x
  3. Step 3: Cross multiply
    3,975.66x = 5,486.13 × 2,207.19
  4. Step 4: Simplify right side
    3,975.66x = 12,108,931.27
  5. Step 5: Solve for x
    x = 12,108,931.27/3,975.66
  6. Step 6: Final answer
    x = 3,045.77

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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.