Home / 3,091.24-4,637.52-899.78

Finding the Fourth Proportional to 3,091.24, 4,637.52 and 899.78

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Solution

The fourth proportional to 3,091.24, 4,637.52 and 899.78 is: 1,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.24 : 4,637.52 = 899.78 : x
  2. Step 2: Convert to fraction form
    3,091.24/4,637.52 = 899.78/x
  3. Step 3: Cross multiply
    3,091.24x = 4,637.52 × 899.78
  4. Step 4: Simplify right side
    3,091.24x = 4,172,747.75
  5. Step 5: Solve for x
    x = 4,172,747.75/3,091.24
  6. Step 6: Final answer
    x = 1,349.86

Related Problems

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Similar ratio
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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.