Home / 4,747.47-6,549.64-2,978.43

Finding the Fourth Proportional to 4,747.47, 6,549.64 and 2,978.43

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Solution

The fourth proportional to 4,747.47, 6,549.64 and 2,978.43 is: 4,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.47 : 6,549.64 = 2,978.43 : x
  2. Step 2: Convert to fraction form
    4,747.47/6,549.64 = 2,978.43/x
  3. Step 3: Cross multiply
    4,747.47x = 6,549.64 × 2,978.43
  4. Step 4: Simplify right side
    4,747.47x = 19,507,644.27
  5. Step 5: Solve for x
    x = 19,507,644.27/4,747.47
  6. Step 6: Final answer
    x = 4,109.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.