Home / 1,455.06-2,181.15-675.30

Finding the Fourth Proportional to 1,455.06, 2,181.15 and 675.30

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Solution

The fourth proportional to 1,455.06, 2,181.15 and 675.30 is: 1,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.06 : 2,181.15 = 675.30 : x
  2. Step 2: Convert to fraction form
    1,455.06/2,181.15 = 675.30/x
  3. Step 3: Cross multiply
    1,455.06x = 2,181.15 × 675.30
  4. Step 4: Simplify right side
    1,455.06x = 1,472,930.60
  5. Step 5: Solve for x
    x = 1,472,930.60/1,455.06
  6. Step 6: Final answer
    x = 1,012.28

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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.