Home / 2,261.16-3,390.12-873.30

Finding the Fourth Proportional to 2,261.16, 3,390.12 and 873.30

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Solution

The fourth proportional to 2,261.16, 3,390.12 and 873.30 is: 1,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.16 : 3,390.12 = 873.30 : x
  2. Step 2: Convert to fraction form
    2,261.16/3,390.12 = 873.30/x
  3. Step 3: Cross multiply
    2,261.16x = 3,390.12 × 873.30
  4. Step 4: Simplify right side
    2,261.16x = 2,960,591.80
  5. Step 5: Solve for x
    x = 2,960,591.80/2,261.16
  6. Step 6: Final answer
    x = 1,309.32

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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.