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Finding the Fourth Proportional to 4,751.84, 7,124.56 and 1,672.16

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Solution

The fourth proportional to 4,751.84, 7,124.56 and 1,672.16 is: 2,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.84 : 7,124.56 = 1,672.16 : x
  2. Step 2: Convert to fraction form
    4,751.84/7,124.56 = 1,672.16/x
  3. Step 3: Cross multiply
    4,751.84x = 7,124.56 × 1,672.16
  4. Step 4: Simplify right side
    4,751.84x = 11,913,404.25
  5. Step 5: Solve for x
    x = 11,913,404.25/4,751.84
  6. Step 6: Final answer
    x = 2,507.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.