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Finding the Fourth Proportional to 2,510.73, 3,765.81 and 661.99

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Solution

The fourth proportional to 2,510.73, 3,765.81 and 661.99 is: 992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,510.73 : 3,765.81 = 661.99 : x
  2. Step 2: Convert to fraction form
    2,510.73/3,765.81 = 661.99/x
  3. Step 3: Cross multiply
    2,510.73x = 3,765.81 × 661.99
  4. Step 4: Simplify right side
    2,510.73x = 2,492,930.79
  5. Step 5: Solve for x
    x = 2,492,930.79/2,510.73
  6. Step 6: Final answer
    x = 992.91

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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.