Home / 4,930.47-7,398.19-2,157.16

Finding the Fourth Proportional to 4,930.47, 7,398.19 and 2,157.16

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Solution

The fourth proportional to 4,930.47, 7,398.19 and 2,157.16 is: 3,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.47 : 7,398.19 = 2,157.16 : x
  2. Step 2: Convert to fraction form
    4,930.47/7,398.19 = 2,157.16/x
  3. Step 3: Cross multiply
    4,930.47x = 7,398.19 × 2,157.16
  4. Step 4: Simplify right side
    4,930.47x = 15,959,058.32
  5. Step 5: Solve for x
    x = 15,959,058.32/4,930.47
  6. Step 6: Final answer
    x = 3,236.82

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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.