Home / 2,312.64-3,470.37-1,217.79

Finding the Fourth Proportional to 2,312.64, 3,470.37 and 1,217.79

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Solution

The fourth proportional to 2,312.64, 3,470.37 and 1,217.79 is: 1,827.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.64 : 3,470.37 = 1,217.79 : x
  2. Step 2: Convert to fraction form
    2,312.64/3,470.37 = 1,217.79/x
  3. Step 3: Cross multiply
    2,312.64x = 3,470.37 × 1,217.79
  4. Step 4: Simplify right side
    2,312.64x = 4,226,181.88
  5. Step 5: Solve for x
    x = 4,226,181.88/2,312.64
  6. Step 6: Final answer
    x = 1,827.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.