Home / 7,436.82-11,155.16-1,890.14

Finding the Fourth Proportional to 7,436.82, 11,155.16 and 1,890.14

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Solution

The fourth proportional to 7,436.82, 11,155.16 and 1,890.14 is: 2,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,436.82 : 11,155.16 = 1,890.14 : x
  2. Step 2: Convert to fraction form
    7,436.82/11,155.16 = 1,890.14/x
  3. Step 3: Cross multiply
    7,436.82x = 11,155.16 × 1,890.14
  4. Step 4: Simplify right side
    7,436.82x = 21,084,814.12
  5. Step 5: Solve for x
    x = 21,084,814.12/7,436.82
  6. Step 6: Final answer
    x = 2,835.19

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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.