Home / 1,507.22-2,260.68-685.27

Finding the Fourth Proportional to 1,507.22, 2,260.68 and 685.27

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Solution

The fourth proportional to 1,507.22, 2,260.68 and 685.27 is: 1,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.22 : 2,260.68 = 685.27 : x
  2. Step 2: Convert to fraction form
    1,507.22/2,260.68 = 685.27/x
  3. Step 3: Cross multiply
    1,507.22x = 2,260.68 × 685.27
  4. Step 4: Simplify right side
    1,507.22x = 1,549,176.44
  5. Step 5: Solve for x
    x = 1,549,176.44/1,507.22
  6. Step 6: Final answer
    x = 1,027.84

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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.