Home / 2,199.87-3,035.75-1,205.19

Finding the Fourth Proportional to 2,199.87, 3,035.75 and 1,205.19

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Solution

The fourth proportional to 2,199.87, 3,035.75 and 1,205.19 is: 1,663.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.87 : 3,035.75 = 1,205.19 : x
  2. Step 2: Convert to fraction form
    2,199.87/3,035.75 = 1,205.19/x
  3. Step 3: Cross multiply
    2,199.87x = 3,035.75 × 1,205.19
  4. Step 4: Simplify right side
    2,199.87x = 3,658,649.52
  5. Step 5: Solve for x
    x = 3,658,649.52/2,199.87
  6. Step 6: Final answer
    x = 1,663.12

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1.5x scale

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.