Home / 2,930.32-4,043.89-1,604.15

Finding the Fourth Proportional to 2,930.32, 4,043.89 and 1,604.15

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Solution

The fourth proportional to 2,930.32, 4,043.89 and 1,604.15 is: 2,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.32 : 4,043.89 = 1,604.15 : x
  2. Step 2: Convert to fraction form
    2,930.32/4,043.89 = 1,604.15/x
  3. Step 3: Cross multiply
    2,930.32x = 4,043.89 × 1,604.15
  4. Step 4: Simplify right side
    2,930.32x = 6,487,006.14
  5. Step 5: Solve for x
    x = 6,487,006.14/2,930.32
  6. Step 6: Final answer
    x = 2,213.75

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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.