Home / 2,972.30-4,102.20-1,713.11

Finding the Fourth Proportional to 2,972.30, 4,102.20 and 1,713.11

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Solution

The fourth proportional to 2,972.30, 4,102.20 and 1,713.11 is: 2,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.30 : 4,102.20 = 1,713.11 : x
  2. Step 2: Convert to fraction form
    2,972.30/4,102.20 = 1,713.11/x
  3. Step 3: Cross multiply
    2,972.30x = 4,102.20 × 1,713.11
  4. Step 4: Simplify right side
    2,972.30x = 7,027,519.84
  5. Step 5: Solve for x
    x = 7,027,519.84/2,972.30
  6. Step 6: Final answer
    x = 2,364.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.