Home / 5,319.68-7,980.38-1,571.84

Finding the Fourth Proportional to 5,319.68, 7,980.38 and 1,571.84

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Solution

The fourth proportional to 5,319.68, 7,980.38 and 1,571.84 is: 2,358.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.68 : 7,980.38 = 1,571.84 : x
  2. Step 2: Convert to fraction form
    5,319.68/7,980.38 = 1,571.84/x
  3. Step 3: Cross multiply
    5,319.68x = 7,980.38 × 1,571.84
  4. Step 4: Simplify right side
    5,319.68x = 12,543,904.38
  5. Step 5: Solve for x
    x = 12,543,904.38/5,319.68
  6. Step 6: Final answer
    x = 2,358.02

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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.