Home / 1,454.38-2,181.75-480.22

Finding the Fourth Proportional to 1,454.38, 2,181.75 and 480.22

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Solution

The fourth proportional to 1,454.38, 2,181.75 and 480.22 is: 720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.38 : 2,181.75 = 480.22 : x
  2. Step 2: Convert to fraction form
    1,454.38/2,181.75 = 480.22/x
  3. Step 3: Cross multiply
    1,454.38x = 2,181.75 × 480.22
  4. Step 4: Simplify right side
    1,454.38x = 1,047,719.99
  5. Step 5: Solve for x
    x = 1,047,719.99/1,454.38
  6. Step 6: Final answer
    x = 720.39

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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.