Home / 5,550.50-7,656.45-3,455.30

Finding the Fourth Proportional to 5,550.50, 7,656.45 and 3,455.30

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Solution

The fourth proportional to 5,550.50, 7,656.45 and 3,455.30 is: 4,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.50 : 7,656.45 = 3,455.30 : x
  2. Step 2: Convert to fraction form
    5,550.50/7,656.45 = 3,455.30/x
  3. Step 3: Cross multiply
    5,550.50x = 7,656.45 × 3,455.30
  4. Step 4: Simplify right side
    5,550.50x = 26,455,331.69
  5. Step 5: Solve for x
    x = 26,455,331.69/5,550.50
  6. Step 6: Final answer
    x = 4,766.30

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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.