Home / 1,519.58-2,097.33-890.44

Finding the Fourth Proportional to 1,519.58, 2,097.33 and 890.44

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Solution

The fourth proportional to 1,519.58, 2,097.33 and 890.44 is: 1,228.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.58 : 2,097.33 = 890.44 : x
  2. Step 2: Convert to fraction form
    1,519.58/2,097.33 = 890.44/x
  3. Step 3: Cross multiply
    1,519.58x = 2,097.33 × 890.44
  4. Step 4: Simplify right side
    1,519.58x = 1,867,541.28
  5. Step 5: Solve for x
    x = 1,867,541.28/1,519.58
  6. Step 6: Final answer
    x = 1,228.99

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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.