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Finding the Fourth Proportional to 5,666.70, 7,819.50 and 3,308.37

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Solution

The fourth proportional to 5,666.70, 7,819.50 and 3,308.37 is: 4,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.70 : 7,819.50 = 3,308.37 : x
  2. Step 2: Convert to fraction form
    5,666.70/7,819.50 = 3,308.37/x
  3. Step 3: Cross multiply
    5,666.70x = 7,819.50 × 3,308.37
  4. Step 4: Simplify right side
    5,666.70x = 25,869,799.22
  5. Step 5: Solve for x
    x = 25,869,799.22/5,666.70
  6. Step 6: Final answer
    x = 4,565.23

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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.