Home / 7,478.08-11,209.98-2,796.82

Finding the Fourth Proportional to 7,478.08, 11,209.98 and 2,796.82

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Solution

The fourth proportional to 7,478.08, 11,209.98 and 2,796.82 is: 4,192.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.08 : 11,209.98 = 2,796.82 : x
  2. Step 2: Convert to fraction form
    7,478.08/11,209.98 = 2,796.82/x
  3. Step 3: Cross multiply
    7,478.08x = 11,209.98 × 2,796.82
  4. Step 4: Simplify right side
    7,478.08x = 31,352,296.26
  5. Step 5: Solve for x
    x = 31,352,296.26/7,478.08
  6. Step 6: Final answer
    x = 4,192.56

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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.