Home / 2,310.12-3,188.08-1,315.58

Finding the Fourth Proportional to 2,310.12, 3,188.08 and 1,315.58

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Solution

The fourth proportional to 2,310.12, 3,188.08 and 1,315.58 is: 1,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.12 : 3,188.08 = 1,315.58 : x
  2. Step 2: Convert to fraction form
    2,310.12/3,188.08 = 1,315.58/x
  3. Step 3: Cross multiply
    2,310.12x = 3,188.08 × 1,315.58
  4. Step 4: Simplify right side
    2,310.12x = 4,194,174.29
  5. Step 5: Solve for x
    x = 4,194,174.29/2,310.12
  6. Step 6: Final answer
    x = 1,815.57

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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.