Home / 7,272.80-10,037.28-4,129.52

Finding the Fourth Proportional to 7,272.80, 10,037.28 and 4,129.52

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Solution

The fourth proportional to 7,272.80, 10,037.28 and 4,129.52 is: 5,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.80 : 10,037.28 = 4,129.52 : x
  2. Step 2: Convert to fraction form
    7,272.80/10,037.28 = 4,129.52/x
  3. Step 3: Cross multiply
    7,272.80x = 10,037.28 × 4,129.52
  4. Step 4: Simplify right side
    7,272.80x = 41,449,148.51
  5. Step 5: Solve for x
    x = 41,449,148.51/7,272.80
  6. Step 6: Final answer
    x = 5,699.20

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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.