Home / 7,272.82-10,036.20-4,129.21

Finding the Fourth Proportional to 7,272.82, 10,036.20 and 4,129.21

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Solution

The fourth proportional to 7,272.82, 10,036.20 and 4,129.21 is: 5,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.82 : 10,036.20 = 4,129.21 : x
  2. Step 2: Convert to fraction form
    7,272.82/10,036.20 = 4,129.21/x
  3. Step 3: Cross multiply
    7,272.82x = 10,036.20 × 4,129.21
  4. Step 4: Simplify right side
    7,272.82x = 41,441,577.40
  5. Step 5: Solve for x
    x = 41,441,577.40/7,272.82
  6. Step 6: Final answer
    x = 5,698.14

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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.