Home / 5,351.76-7,385.45-2,993.90

Finding the Fourth Proportional to 5,351.76, 7,385.45 and 2,993.90

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Solution

The fourth proportional to 5,351.76, 7,385.45 and 2,993.90 is: 4,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.76 : 7,385.45 = 2,993.90 : x
  2. Step 2: Convert to fraction form
    5,351.76/7,385.45 = 2,993.90/x
  3. Step 3: Cross multiply
    5,351.76x = 7,385.45 × 2,993.90
  4. Step 4: Simplify right side
    5,351.76x = 22,111,246.86
  5. Step 5: Solve for x
    x = 22,111,246.86/5,351.76
  6. Step 6: Final answer
    x = 4,131.58

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1.5x scale

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.