Home / 3,119.64-4,306.14-2,071.50

Finding the Fourth Proportional to 3,119.64, 4,306.14 and 2,071.50

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Solution

The fourth proportional to 3,119.64, 4,306.14 and 2,071.50 is: 2,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.64 : 4,306.14 = 2,071.50 : x
  2. Step 2: Convert to fraction form
    3,119.64/4,306.14 = 2,071.50/x
  3. Step 3: Cross multiply
    3,119.64x = 4,306.14 × 2,071.50
  4. Step 4: Simplify right side
    3,119.64x = 8,920,169.01
  5. Step 5: Solve for x
    x = 8,920,169.01/3,119.64
  6. Step 6: Final answer
    x = 2,859.36

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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.