Home / 2,219.49-3,330.02-1,396.84

Finding the Fourth Proportional to 2,219.49, 3,330.02 and 1,396.84

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Solution

The fourth proportional to 2,219.49, 3,330.02 and 1,396.84 is: 2,095.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.49 : 3,330.02 = 1,396.84 : x
  2. Step 2: Convert to fraction form
    2,219.49/3,330.02 = 1,396.84/x
  3. Step 3: Cross multiply
    2,219.49x = 3,330.02 × 1,396.84
  4. Step 4: Simplify right side
    2,219.49x = 4,651,505.14
  5. Step 5: Solve for x
    x = 4,651,505.14/2,219.49
  6. Step 6: Final answer
    x = 2,095.75

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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.