Home / 2,310.56-3,188.80-1,366.66

Finding the Fourth Proportional to 2,310.56, 3,188.80 and 1,366.66

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Solution

The fourth proportional to 2,310.56, 3,188.80 and 1,366.66 is: 1,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.56 : 3,188.80 = 1,366.66 : x
  2. Step 2: Convert to fraction form
    2,310.56/3,188.80 = 1,366.66/x
  3. Step 3: Cross multiply
    2,310.56x = 3,188.80 × 1,366.66
  4. Step 4: Simplify right side
    2,310.56x = 4,358,005.41
  5. Step 5: Solve for x
    x = 4,358,005.41/2,310.56
  6. Step 6: Final answer
    x = 1,886.13

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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.