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Finding the Fourth Proportional to 3,710.72, 5,566.39 and 1,245.62

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Solution

The fourth proportional to 3,710.72, 5,566.39 and 1,245.62 is: 1,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.72 : 5,566.39 = 1,245.62 : x
  2. Step 2: Convert to fraction form
    3,710.72/5,566.39 = 1,245.62/x
  3. Step 3: Cross multiply
    3,710.72x = 5,566.39 × 1,245.62
  4. Step 4: Simplify right side
    3,710.72x = 6,933,617.51
  5. Step 5: Solve for x
    x = 6,933,617.51/3,710.72
  6. Step 6: Final answer
    x = 1,868.54

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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.