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Finding the Fourth Proportional to 4,953.78, 7,437.27 and 2,875.28

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Solution

The fourth proportional to 4,953.78, 7,437.27 and 2,875.28 is: 4,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.78 : 7,437.27 = 2,875.28 : x
  2. Step 2: Convert to fraction form
    4,953.78/7,437.27 = 2,875.28/x
  3. Step 3: Cross multiply
    4,953.78x = 7,437.27 × 2,875.28
  4. Step 4: Simplify right side
    4,953.78x = 21,384,233.69
  5. Step 5: Solve for x
    x = 21,384,233.69/4,953.78
  6. Step 6: Final answer
    x = 4,316.75

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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.