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Finding the Fourth Proportional to 2,507.84, 3,764.32 and 1,047.84

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Solution

The fourth proportional to 2,507.84, 3,764.32 and 1,047.84 is: 1,572.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.84 : 3,764.32 = 1,047.84 : x
  2. Step 2: Convert to fraction form
    2,507.84/3,764.32 = 1,047.84/x
  3. Step 3: Cross multiply
    2,507.84x = 3,764.32 × 1,047.84
  4. Step 4: Simplify right side
    2,507.84x = 3,944,405.07
  5. Step 5: Solve for x
    x = 3,944,405.07/2,507.84
  6. Step 6: Final answer
    x = 1,572.83

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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.