Home / 1,605.17-2,214.51-1,081.55

Finding the Fourth Proportional to 1,605.17, 2,214.51 and 1,081.55

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Solution

The fourth proportional to 1,605.17, 2,214.51 and 1,081.55 is: 1,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.17 : 2,214.51 = 1,081.55 : x
  2. Step 2: Convert to fraction form
    1,605.17/2,214.51 = 1,081.55/x
  3. Step 3: Cross multiply
    1,605.17x = 2,214.51 × 1,081.55
  4. Step 4: Simplify right side
    1,605.17x = 2,395,103.29
  5. Step 5: Solve for x
    x = 2,395,103.29/1,605.17
  6. Step 6: Final answer
    x = 1,492.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.