Home / 2,930.31-4,043.61-1,603.89

Finding the Fourth Proportional to 2,930.31, 4,043.61 and 1,603.89

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Solution

The fourth proportional to 2,930.31, 4,043.61 and 1,603.89 is: 2,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.31 : 4,043.61 = 1,603.89 : x
  2. Step 2: Convert to fraction form
    2,930.31/4,043.61 = 1,603.89/x
  3. Step 3: Cross multiply
    2,930.31x = 4,043.61 × 1,603.89
  4. Step 4: Simplify right side
    2,930.31x = 6,485,505.64
  5. Step 5: Solve for x
    x = 6,485,505.64/2,930.31
  6. Step 6: Final answer
    x = 2,213.25

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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.