Home / 1,614.85-2,421.32-1,155.58

Finding the Fourth Proportional to 1,614.85, 2,421.32 and 1,155.58

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Solution

The fourth proportional to 1,614.85, 2,421.32 and 1,155.58 is: 1,732.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.85 : 2,421.32 = 1,155.58 : x
  2. Step 2: Convert to fraction form
    1,614.85/2,421.32 = 1,155.58/x
  3. Step 3: Cross multiply
    1,614.85x = 2,421.32 × 1,155.58
  4. Step 4: Simplify right side
    1,614.85x = 2,798,028.97
  5. Step 5: Solve for x
    x = 2,798,028.97/1,614.85
  6. Step 6: Final answer
    x = 1,732.69

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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.