Home / 1,957.22-2,702.92-1,639.28

Finding the Fourth Proportional to 1,957.22, 2,702.92 and 1,639.28

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Solution

The fourth proportional to 1,957.22, 2,702.92 and 1,639.28 is: 2,263.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.22 : 2,702.92 = 1,639.28 : x
  2. Step 2: Convert to fraction form
    1,957.22/2,702.92 = 1,639.28/x
  3. Step 3: Cross multiply
    1,957.22x = 2,702.92 × 1,639.28
  4. Step 4: Simplify right side
    1,957.22x = 4,430,842.70
  5. Step 5: Solve for x
    x = 4,430,842.70/1,957.22
  6. Step 6: Final answer
    x = 2,263.84

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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.