Home / 2,930.10-4,042.54-1,809.88

Finding the Fourth Proportional to 2,930.10, 4,042.54 and 1,809.88

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Solution

The fourth proportional to 2,930.10, 4,042.54 and 1,809.88 is: 2,497.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.10 : 4,042.54 = 1,809.88 : x
  2. Step 2: Convert to fraction form
    2,930.10/4,042.54 = 1,809.88/x
  3. Step 3: Cross multiply
    2,930.10x = 4,042.54 × 1,809.88
  4. Step 4: Simplify right side
    2,930.10x = 7,316,512.30
  5. Step 5: Solve for x
    x = 7,316,512.30/2,930.10
  6. Step 6: Final answer
    x = 2,497.02

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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.