Home / 5,319.65-7,340.81-3,081.37

Finding the Fourth Proportional to 5,319.65, 7,340.81 and 3,081.37

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Solution

The fourth proportional to 5,319.65, 7,340.81 and 3,081.37 is: 4,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.65 : 7,340.81 = 3,081.37 : x
  2. Step 2: Convert to fraction form
    5,319.65/7,340.81 = 3,081.37/x
  3. Step 3: Cross multiply
    5,319.65x = 7,340.81 × 3,081.37
  4. Step 4: Simplify right side
    5,319.65x = 22,619,751.71
  5. Step 5: Solve for x
    x = 22,619,751.71/5,319.65
  6. Step 6: Final answer
    x = 4,252.11

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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.