Home / 2,801.30-4,201.47-926.96

Finding the Fourth Proportional to 2,801.30, 4,201.47 and 926.96

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Solution

The fourth proportional to 2,801.30, 4,201.47 and 926.96 is: 1,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.30 : 4,201.47 = 926.96 : x
  2. Step 2: Convert to fraction form
    2,801.30/4,201.47 = 926.96/x
  3. Step 3: Cross multiply
    2,801.30x = 4,201.47 × 926.96
  4. Step 4: Simplify right side
    2,801.30x = 3,894,573.62
  5. Step 5: Solve for x
    x = 3,894,573.62/2,801.30
  6. Step 6: Final answer
    x = 1,390.28

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1.5x scale

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.