Home / 5,272.17-7,278.96-3,285.64

Finding the Fourth Proportional to 5,272.17, 7,278.96 and 3,285.64

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Solution

The fourth proportional to 5,272.17, 7,278.96 and 3,285.64 is: 4,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.17 : 7,278.96 = 3,285.64 : x
  2. Step 2: Convert to fraction form
    5,272.17/7,278.96 = 3,285.64/x
  3. Step 3: Cross multiply
    5,272.17x = 7,278.96 × 3,285.64
  4. Step 4: Simplify right side
    5,272.17x = 23,916,042.13
  5. Step 5: Solve for x
    x = 23,916,042.13/5,272.17
  6. Step 6: Final answer
    x = 4,536.28

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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.