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Finding the Fourth Proportional to 2,937, 4,405.08 and 1,087.81

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Solution

The fourth proportional to 2,937, 4,405.08 and 1,087.81 is: 1,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,937 : 4,405.08 = 1,087.81 : x
  2. Step 2: Convert to fraction form
    2,937/4,405.08 = 1,087.81/x
  3. Step 3: Cross multiply
    2,937x = 4,405.08 × 1,087.81
  4. Step 4: Simplify right side
    2,937x = 4,791,890.07
  5. Step 5: Solve for x
    x = 4,791,890.07/2,937
  6. Step 6: Final answer
    x = 1,631.56

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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.