Home / 5,390.08-8,078.64-2,924.80

Finding the Fourth Proportional to 5,390.08, 8,078.64 and 2,924.80

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Solution

The fourth proportional to 5,390.08, 8,078.64 and 2,924.80 is: 4,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.08 : 8,078.64 = 2,924.80 : x
  2. Step 2: Convert to fraction form
    5,390.08/8,078.64 = 2,924.80/x
  3. Step 3: Cross multiply
    5,390.08x = 8,078.64 × 2,924.80
  4. Step 4: Simplify right side
    5,390.08x = 23,628,406.27
  5. Step 5: Solve for x
    x = 23,628,406.27/5,390.08
  6. Step 6: Final answer
    x = 4,383.68

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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.