Home / 2,689.48-4,037.46-1,821.16

Finding the Fourth Proportional to 2,689.48, 4,037.46 and 1,821.16

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Solution

The fourth proportional to 2,689.48, 4,037.46 and 1,821.16 is: 2,733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.48 : 4,037.46 = 1,821.16 : x
  2. Step 2: Convert to fraction form
    2,689.48/4,037.46 = 1,821.16/x
  3. Step 3: Cross multiply
    2,689.48x = 4,037.46 × 1,821.16
  4. Step 4: Simplify right side
    2,689.48x = 7,352,860.65
  5. Step 5: Solve for x
    x = 7,352,860.65/2,689.48
  6. Step 6: Final answer
    x = 2,733.93

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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.