Home / 2,306.02-3,182.42-1,311.28

Finding the Fourth Proportional to 2,306.02, 3,182.42 and 1,311.28

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Solution

The fourth proportional to 2,306.02, 3,182.42 and 1,311.28 is: 1,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.02 : 3,182.42 = 1,311.28 : x
  2. Step 2: Convert to fraction form
    2,306.02/3,182.42 = 1,311.28/x
  3. Step 3: Cross multiply
    2,306.02x = 3,182.42 × 1,311.28
  4. Step 4: Simplify right side
    2,306.02x = 4,173,043.70
  5. Step 5: Solve for x
    x = 4,173,043.70/2,306.02
  6. Step 6: Final answer
    x = 1,809.63

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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.