Home / 2,318.64-3,200.10-1,730.86

Finding the Fourth Proportional to 2,318.64, 3,200.10 and 1,730.86

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Solution

The fourth proportional to 2,318.64, 3,200.10 and 1,730.86 is: 2,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.64 : 3,200.10 = 1,730.86 : x
  2. Step 2: Convert to fraction form
    2,318.64/3,200.10 = 1,730.86/x
  3. Step 3: Cross multiply
    2,318.64x = 3,200.10 × 1,730.86
  4. Step 4: Simplify right side
    2,318.64x = 5,538,925.09
  5. Step 5: Solve for x
    x = 5,538,925.09/2,318.64
  6. Step 6: Final answer
    x = 2,388.87

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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.