Home / 7,137.90-10,703.52-3,805.31

Finding the Fourth Proportional to 7,137.90, 10,703.52 and 3,805.31

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Solution

The fourth proportional to 7,137.90, 10,703.52 and 3,805.31 is: 5,706.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.90 : 10,703.52 = 3,805.31 : x
  2. Step 2: Convert to fraction form
    7,137.90/10,703.52 = 3,805.31/x
  3. Step 3: Cross multiply
    7,137.90x = 10,703.52 × 3,805.31
  4. Step 4: Simplify right side
    7,137.90x = 40,730,238.45
  5. Step 5: Solve for x
    x = 40,730,238.45/7,137.90
  6. Step 6: Final answer
    x = 5,706.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.