Home / 1,815.17-2,717.26-1,641.92

Finding the Fourth Proportional to 1,815.17, 2,717.26 and 1,641.92

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Solution

The fourth proportional to 1,815.17, 2,717.26 and 1,641.92 is: 2,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.17 : 2,717.26 = 1,641.92 : x
  2. Step 2: Convert to fraction form
    1,815.17/2,717.26 = 1,641.92/x
  3. Step 3: Cross multiply
    1,815.17x = 2,717.26 × 1,641.92
  4. Step 4: Simplify right side
    1,815.17x = 4,461,505.85
  5. Step 5: Solve for x
    x = 4,461,505.85/1,815.17
  6. Step 6: Final answer
    x = 2,457.90

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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.