Home / 2,823.96-4,239.60-2,175.12

Finding the Fourth Proportional to 2,823.96, 4,239.60 and 2,175.12

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Solution

The fourth proportional to 2,823.96, 4,239.60 and 2,175.12 is: 3,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.96 : 4,239.60 = 2,175.12 : x
  2. Step 2: Convert to fraction form
    2,823.96/4,239.60 = 2,175.12/x
  3. Step 3: Cross multiply
    2,823.96x = 4,239.60 × 2,175.12
  4. Step 4: Simplify right side
    2,823.96x = 9,221,638.75
  5. Step 5: Solve for x
    x = 9,221,638.75/2,823.96
  6. Step 6: Final answer
    x = 3,265.50

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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.