Home / 9,319.30-13,980.66-3,079.74

Finding the Fourth Proportional to 9,319.30, 13,980.66 and 3,079.74

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Solution

The fourth proportional to 9,319.30, 13,980.66 and 3,079.74 is: 4,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.30 : 13,980.66 = 3,079.74 : x
  2. Step 2: Convert to fraction form
    9,319.30/13,980.66 = 3,079.74/x
  3. Step 3: Cross multiply
    9,319.30x = 13,980.66 × 3,079.74
  4. Step 4: Simplify right side
    9,319.30x = 43,056,797.83
  5. Step 5: Solve for x
    x = 43,056,797.83/9,319.30
  6. Step 6: Final answer
    x = 4,620.18

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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.