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Finding the Fourth Proportional to 5,319.78, 7,333.74 and 3,827.22

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Solution

The fourth proportional to 5,319.78, 7,333.74 and 3,827.22 is: 5,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.78 : 7,333.74 = 3,827.22 : x
  2. Step 2: Convert to fraction form
    5,319.78/7,333.74 = 3,827.22/x
  3. Step 3: Cross multiply
    5,319.78x = 7,333.74 × 3,827.22
  4. Step 4: Simplify right side
    5,319.78x = 28,067,836.40
  5. Step 5: Solve for x
    x = 28,067,836.40/5,319.78
  6. Step 6: Final answer
    x = 5,276.13

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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.