Home / 2,133.18-3,200.31-899.96

Finding the Fourth Proportional to 2,133.18, 3,200.31 and 899.96

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Solution

The fourth proportional to 2,133.18, 3,200.31 and 899.96 is: 1,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.18 : 3,200.31 = 899.96 : x
  2. Step 2: Convert to fraction form
    2,133.18/3,200.31 = 899.96/x
  3. Step 3: Cross multiply
    2,133.18x = 3,200.31 × 899.96
  4. Step 4: Simplify right side
    2,133.18x = 2,880,134.99
  5. Step 5: Solve for x
    x = 2,880,134.99/2,133.18
  6. Step 6: Final answer
    x = 1,350.16

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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.