Home / 2,901.12-4,345.92-1,872

Finding the Fourth Proportional to 2,901.12, 4,345.92 and 1,872

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Solution

The fourth proportional to 2,901.12, 4,345.92 and 1,872 is: 2,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.12 : 4,345.92 = 1,872 : x
  2. Step 2: Convert to fraction form
    2,901.12/4,345.92 = 1,872/x
  3. Step 3: Cross multiply
    2,901.12x = 4,345.92 × 1,872
  4. Step 4: Simplify right side
    2,901.12x = 8,135,562.24
  5. Step 5: Solve for x
    x = 8,135,562.24/2,901.12
  6. Step 6: Final answer
    x = 2,804.28

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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.