Home / 2,310.50-3,187.52-1,315.64

Finding the Fourth Proportional to 2,310.50, 3,187.52 and 1,315.64

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Solution

The fourth proportional to 2,310.50, 3,187.52 and 1,315.64 is: 1,815.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.50 : 3,187.52 = 1,315.64 : x
  2. Step 2: Convert to fraction form
    2,310.50/3,187.52 = 1,315.64/x
  3. Step 3: Cross multiply
    2,310.50x = 3,187.52 × 1,315.64
  4. Step 4: Simplify right side
    2,310.50x = 4,193,628.81
  5. Step 5: Solve for x
    x = 4,193,628.81/2,310.50
  6. Step 6: Final answer
    x = 1,815.03

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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.