Home / 1,081.04-1,618.97-617.42

Finding the Fourth Proportional to 1,081.04, 1,618.97 and 617.42

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Solution

The fourth proportional to 1,081.04, 1,618.97 and 617.42 is: 924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.04 : 1,618.97 = 617.42 : x
  2. Step 2: Convert to fraction form
    1,081.04/1,618.97 = 617.42/x
  3. Step 3: Cross multiply
    1,081.04x = 1,618.97 × 617.42
  4. Step 4: Simplify right side
    1,081.04x = 999,573.28
  5. Step 5: Solve for x
    x = 999,573.28/1,081.04
  6. Step 6: Final answer
    x = 924.64

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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.