Home / 6,319.80-9,480.74-2,811.02

Finding the Fourth Proportional to 6,319.80, 9,480.74 and 2,811.02

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Solution

The fourth proportional to 6,319.80, 9,480.74 and 2,811.02 is: 4,216.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.80 : 9,480.74 = 2,811.02 : x
  2. Step 2: Convert to fraction form
    6,319.80/9,480.74 = 2,811.02/x
  3. Step 3: Cross multiply
    6,319.80x = 9,480.74 × 2,811.02
  4. Step 4: Simplify right side
    6,319.80x = 26,650,488.30
  5. Step 5: Solve for x
    x = 26,650,488.30/6,319.80
  6. Step 6: Final answer
    x = 4,216.98

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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.