Home / 2,666.36-3,991.34-1,693.15

Finding the Fourth Proportional to 2,666.36, 3,991.34 and 1,693.15

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Solution

The fourth proportional to 2,666.36, 3,991.34 and 1,693.15 is: 2,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.36 : 3,991.34 = 1,693.15 : x
  2. Step 2: Convert to fraction form
    2,666.36/3,991.34 = 1,693.15/x
  3. Step 3: Cross multiply
    2,666.36x = 3,991.34 × 1,693.15
  4. Step 4: Simplify right side
    2,666.36x = 6,757,931.58
  5. Step 5: Solve for x
    x = 6,757,931.58/2,666.36
  6. Step 6: Final answer
    x = 2,534.51

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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.