Home / 3,172,687.92-4,378,321.08-1,722,386.16

Finding the Fourth Proportional to 3,172,687.92, 4,378,321.08 and 1,722,386.16

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Solution

The fourth proportional to 3,172,687.92, 4,378,321.08 and 1,722,386.16 is: 2,376,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,687.92 : 4,378,321.08 = 1,722,386.16 : x
  2. Step 2: Convert to fraction form
    3,172,687.92/4,378,321.08 = 1,722,386.16/x
  3. Step 3: Cross multiply
    3,172,687.92x = 4,378,321.08 × 1,722,386.16
  4. Step 4: Simplify right side
    3,172,687.92x = 7,541,159,632,228.25
  5. Step 5: Solve for x
    x = 7,541,159,632,228.25/3,172,687.92
  6. Step 6: Final answer
    x = 2,376,899.28

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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.