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Finding the Fourth Proportional to 4,775.31, 7,160.43 and 2,927.28

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Solution

The fourth proportional to 4,775.31, 7,160.43 and 2,927.28 is: 4,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.31 : 7,160.43 = 2,927.28 : x
  2. Step 2: Convert to fraction form
    4,775.31/7,160.43 = 2,927.28/x
  3. Step 3: Cross multiply
    4,775.31x = 7,160.43 × 2,927.28
  4. Step 4: Simplify right side
    4,775.31x = 20,960,583.53
  5. Step 5: Solve for x
    x = 20,960,583.53/4,775.31
  6. Step 6: Final answer
    x = 4,389.37

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1.5x scale

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.