Home / 2,132.39-3,199.01-899.79

Finding the Fourth Proportional to 2,132.39, 3,199.01 and 899.79

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Solution

The fourth proportional to 2,132.39, 3,199.01 and 899.79 is: 1,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.39 : 3,199.01 = 899.79 : x
  2. Step 2: Convert to fraction form
    2,132.39/3,199.01 = 899.79/x
  3. Step 3: Cross multiply
    2,132.39x = 3,199.01 × 899.79
  4. Step 4: Simplify right side
    2,132.39x = 2,878,437.21
  5. Step 5: Solve for x
    x = 2,878,437.21/2,132.39
  6. Step 6: Final answer
    x = 1,349.86

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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.