Home / 1,519.64-2,096.88-890.27

Finding the Fourth Proportional to 1,519.64, 2,096.88 and 890.27

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Solution

The fourth proportional to 1,519.64, 2,096.88 and 890.27 is: 1,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.64 : 2,096.88 = 890.27 : x
  2. Step 2: Convert to fraction form
    1,519.64/2,096.88 = 890.27/x
  3. Step 3: Cross multiply
    1,519.64x = 2,096.88 × 890.27
  4. Step 4: Simplify right side
    1,519.64x = 1,866,778.87
  5. Step 5: Solve for x
    x = 1,866,778.87/1,519.64
  6. Step 6: Final answer
    x = 1,228.44

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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.