Home / 1,455.06-2,182.50-480.90

Finding the Fourth Proportional to 1,455.06, 2,182.50 and 480.90

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Solution

The fourth proportional to 1,455.06, 2,182.50 and 480.90 is: 721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.06 : 2,182.50 = 480.90 : x
  2. Step 2: Convert to fraction form
    1,455.06/2,182.50 = 480.90/x
  3. Step 3: Cross multiply
    1,455.06x = 2,182.50 × 480.90
  4. Step 4: Simplify right side
    1,455.06x = 1,049,564.25
  5. Step 5: Solve for x
    x = 1,049,564.25/1,455.06
  6. Step 6: Final answer
    x = 721.32

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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.