Home / 2,630.64-3,943.30-1,706.78

Finding the Fourth Proportional to 2,630.64, 3,943.30 and 1,706.78

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Solution

The fourth proportional to 2,630.64, 3,943.30 and 1,706.78 is: 2,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.64 : 3,943.30 = 1,706.78 : x
  2. Step 2: Convert to fraction form
    2,630.64/3,943.30 = 1,706.78/x
  3. Step 3: Cross multiply
    2,630.64x = 3,943.30 × 1,706.78
  4. Step 4: Simplify right side
    2,630.64x = 6,730,345.57
  5. Step 5: Solve for x
    x = 6,730,345.57/2,630.64
  6. Step 6: Final answer
    x = 2,558.44

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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.