Home / 2,995.12-4,492.70-1,121.44

Finding the Fourth Proportional to 2,995.12, 4,492.70 and 1,121.44

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Solution

The fourth proportional to 2,995.12, 4,492.70 and 1,121.44 is: 1,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.12 : 4,492.70 = 1,121.44 : x
  2. Step 2: Convert to fraction form
    2,995.12/4,492.70 = 1,121.44/x
  3. Step 3: Cross multiply
    2,995.12x = 4,492.70 × 1,121.44
  4. Step 4: Simplify right side
    2,995.12x = 5,038,293.49
  5. Step 5: Solve for x
    x = 5,038,293.49/2,995.12
  6. Step 6: Final answer
    x = 1,682.17

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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.