Home / 7,209.36-10,815.48-2,827.44

Finding the Fourth Proportional to 7,209.36, 10,815.48 and 2,827.44

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Solution

The fourth proportional to 7,209.36, 10,815.48 and 2,827.44 is: 4,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.36 : 10,815.48 = 2,827.44 : x
  2. Step 2: Convert to fraction form
    7,209.36/10,815.48 = 2,827.44/x
  3. Step 3: Cross multiply
    7,209.36x = 10,815.48 × 2,827.44
  4. Step 4: Simplify right side
    7,209.36x = 30,580,120.77
  5. Step 5: Solve for x
    x = 30,580,120.77/7,209.36
  6. Step 6: Final answer
    x = 4,241.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.