Home / 7,051.25-9,730.68-3,907.43

Finding the Fourth Proportional to 7,051.25, 9,730.68 and 3,907.43

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Solution

The fourth proportional to 7,051.25, 9,730.68 and 3,907.43 is: 5,392.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.25 : 9,730.68 = 3,907.43 : x
  2. Step 2: Convert to fraction form
    7,051.25/9,730.68 = 3,907.43/x
  3. Step 3: Cross multiply
    7,051.25x = 9,730.68 × 3,907.43
  4. Step 4: Simplify right side
    7,051.25x = 38,021,902.30
  5. Step 5: Solve for x
    x = 38,021,902.30/7,051.25
  6. Step 6: Final answer
    x = 5,392.23

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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.