Home / 1,690.27-2,535.49-536.11

Finding the Fourth Proportional to 1,690.27, 2,535.49 and 536.11

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Solution

The fourth proportional to 1,690.27, 2,535.49 and 536.11 is: 804.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.27 : 2,535.49 = 536.11 : x
  2. Step 2: Convert to fraction form
    1,690.27/2,535.49 = 536.11/x
  3. Step 3: Cross multiply
    1,690.27x = 2,535.49 × 536.11
  4. Step 4: Simplify right side
    1,690.27x = 1,359,295.88
  5. Step 5: Solve for x
    x = 1,359,295.88/1,690.27
  6. Step 6: Final answer
    x = 804.19

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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.