Home / 5,565.20-7,678.50-3,208.64

Finding the Fourth Proportional to 5,565.20, 7,678.50 and 3,208.64

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Solution

The fourth proportional to 5,565.20, 7,678.50 and 3,208.64 is: 4,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.20 : 7,678.50 = 3,208.64 : x
  2. Step 2: Convert to fraction form
    5,565.20/7,678.50 = 3,208.64/x
  3. Step 3: Cross multiply
    5,565.20x = 7,678.50 × 3,208.64
  4. Step 4: Simplify right side
    5,565.20x = 24,637,542.24
  5. Step 5: Solve for x
    x = 24,637,542.24/5,565.20
  6. Step 6: Final answer
    x = 4,427.07

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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.