Home / 4,872.47-7,308.70-3,142.31

Finding the Fourth Proportional to 4,872.47, 7,308.70 and 3,142.31

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Solution

The fourth proportional to 4,872.47, 7,308.70 and 3,142.31 is: 4,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.47 : 7,308.70 = 3,142.31 : x
  2. Step 2: Convert to fraction form
    4,872.47/7,308.70 = 3,142.31/x
  3. Step 3: Cross multiply
    4,872.47x = 7,308.70 × 3,142.31
  4. Step 4: Simplify right side
    4,872.47x = 22,966,201.10
  5. Step 5: Solve for x
    x = 22,966,201.10/4,872.47
  6. Step 6: Final answer
    x = 4,713.46

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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.