Home / 5,785.36-7,985.82-3,689.08

Finding the Fourth Proportional to 5,785.36, 7,985.82 and 3,689.08

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Solution

The fourth proportional to 5,785.36, 7,985.82 and 3,689.08 is: 5,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.36 : 7,985.82 = 3,689.08 : x
  2. Step 2: Convert to fraction form
    5,785.36/7,985.82 = 3,689.08/x
  3. Step 3: Cross multiply
    5,785.36x = 7,985.82 × 3,689.08
  4. Step 4: Simplify right side
    5,785.36x = 29,460,328.85
  5. Step 5: Solve for x
    x = 29,460,328.85/5,785.36
  6. Step 6: Final answer
    x = 5,092.22

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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.