Home / 1,617.18-2,425.77-1,388.22

Finding the Fourth Proportional to 1,617.18, 2,425.77 and 1,388.22

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Solution

The fourth proportional to 1,617.18, 2,425.77 and 1,388.22 is: 2,082.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.18 : 2,425.77 = 1,388.22 : x
  2. Step 2: Convert to fraction form
    1,617.18/2,425.77 = 1,388.22/x
  3. Step 3: Cross multiply
    1,617.18x = 2,425.77 × 1,388.22
  4. Step 4: Simplify right side
    1,617.18x = 3,367,502.43
  5. Step 5: Solve for x
    x = 3,367,502.43/1,617.18
  6. Step 6: Final answer
    x = 2,082.33

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1.5x scale

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.