Home / 8,935.31-13,402.97-2,779.31

Finding the Fourth Proportional to 8,935.31, 13,402.97 and 2,779.31

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Solution

The fourth proportional to 8,935.31, 13,402.97 and 2,779.31 is: 4,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.31 : 13,402.97 = 2,779.31 : x
  2. Step 2: Convert to fraction form
    8,935.31/13,402.97 = 2,779.31/x
  3. Step 3: Cross multiply
    8,935.31x = 13,402.97 × 2,779.31
  4. Step 4: Simplify right side
    8,935.31x = 37,251,038.58
  5. Step 5: Solve for x
    x = 37,251,038.58/8,935.31
  6. Step 6: Final answer
    x = 4,168.97

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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.