Home / 7,388.02-11,078.78-2,884.42

Finding the Fourth Proportional to 7,388.02, 11,078.78 and 2,884.42

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Solution

The fourth proportional to 7,388.02, 11,078.78 and 2,884.42 is: 4,325.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.02 : 11,078.78 = 2,884.42 : x
  2. Step 2: Convert to fraction form
    7,388.02/11,078.78 = 2,884.42/x
  3. Step 3: Cross multiply
    7,388.02x = 11,078.78 × 2,884.42
  4. Step 4: Simplify right side
    7,388.02x = 31,955,854.61
  5. Step 5: Solve for x
    x = 31,955,854.61/7,388.02
  6. Step 6: Final answer
    x = 4,325.36

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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.