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Finding the Fourth Proportional to 2,935.23, 4,403.25 and 987.99

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Solution

The fourth proportional to 2,935.23, 4,403.25 and 987.99 is: 1,482.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,935.23 : 4,403.25 = 987.99 : x
  2. Step 2: Convert to fraction form
    2,935.23/4,403.25 = 987.99/x
  3. Step 3: Cross multiply
    2,935.23x = 4,403.25 × 987.99
  4. Step 4: Simplify right side
    2,935.23x = 4,350,366.97
  5. Step 5: Solve for x
    x = 4,350,366.97/2,935.23
  6. Step 6: Final answer
    x = 1,482.12

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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.