Home / 1,617.42-2,421.27-1,147.23

Finding the Fourth Proportional to 1,617.42, 2,421.27 and 1,147.23

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Solution

The fourth proportional to 1,617.42, 2,421.27 and 1,147.23 is: 1,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.42 : 2,421.27 = 1,147.23 : x
  2. Step 2: Convert to fraction form
    1,617.42/2,421.27 = 1,147.23/x
  3. Step 3: Cross multiply
    1,617.42x = 2,421.27 × 1,147.23
  4. Step 4: Simplify right side
    1,617.42x = 2,777,753.58
  5. Step 5: Solve for x
    x = 2,777,753.58/1,617.42
  6. Step 6: Final answer
    x = 1,717.40

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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.