Home / 1,454.04-2,181.06-685.08

Finding the Fourth Proportional to 1,454.04, 2,181.06 and 685.08

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Solution

The fourth proportional to 1,454.04, 2,181.06 and 685.08 is: 1,027.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.04 : 2,181.06 = 685.08 : x
  2. Step 2: Convert to fraction form
    1,454.04/2,181.06 = 685.08/x
  3. Step 3: Cross multiply
    1,454.04x = 2,181.06 × 685.08
  4. Step 4: Simplify right side
    1,454.04x = 1,494,200.58
  5. Step 5: Solve for x
    x = 1,494,200.58/1,454.04
  6. Step 6: Final answer
    x = 1,027.62

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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.