Home / 2,813.72-3,884.76-2,518.48

Finding the Fourth Proportional to 2,813.72, 3,884.76 and 2,518.48

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Solution

The fourth proportional to 2,813.72, 3,884.76 and 2,518.48 is: 3,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.72 : 3,884.76 = 2,518.48 : x
  2. Step 2: Convert to fraction form
    2,813.72/3,884.76 = 2,518.48/x
  3. Step 3: Cross multiply
    2,813.72x = 3,884.76 × 2,518.48
  4. Step 4: Simplify right side
    2,813.72x = 9,783,690.36
  5. Step 5: Solve for x
    x = 9,783,690.36/2,813.72
  6. Step 6: Final answer
    x = 3,477.14

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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.