Home / 2,509.29-3,764.15-660.39

Finding the Fourth Proportional to 2,509.29, 3,764.15 and 660.39

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Solution

The fourth proportional to 2,509.29, 3,764.15 and 660.39 is: 990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.29 : 3,764.15 = 660.39 : x
  2. Step 2: Convert to fraction form
    2,509.29/3,764.15 = 660.39/x
  3. Step 3: Cross multiply
    2,509.29x = 3,764.15 × 660.39
  4. Step 4: Simplify right side
    2,509.29x = 2,485,807.02
  5. Step 5: Solve for x
    x = 2,485,807.02/2,509.29
  6. Step 6: Final answer
    x = 990.64

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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.