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Finding the Fourth Proportional to 3,388.99, 4,676.83 and 1,973.50

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Solution

The fourth proportional to 3,388.99, 4,676.83 and 1,973.50 is: 2,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.99 : 4,676.83 = 1,973.50 : x
  2. Step 2: Convert to fraction form
    3,388.99/4,676.83 = 1,973.50/x
  3. Step 3: Cross multiply
    3,388.99x = 4,676.83 × 1,973.50
  4. Step 4: Simplify right side
    3,388.99x = 9,229,726.77
  5. Step 5: Solve for x
    x = 9,229,726.77/3,388.99
  6. Step 6: Final answer
    x = 2,723.45

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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.