Home / 7,319.28-10,973.60-3,421.52

Finding the Fourth Proportional to 7,319.28, 10,973.60 and 3,421.52

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Solution

The fourth proportional to 7,319.28, 10,973.60 and 3,421.52 is: 5,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.28 : 10,973.60 = 3,421.52 : x
  2. Step 2: Convert to fraction form
    7,319.28/10,973.60 = 3,421.52/x
  3. Step 3: Cross multiply
    7,319.28x = 10,973.60 × 3,421.52
  4. Step 4: Simplify right side
    7,319.28x = 37,546,391.87
  5. Step 5: Solve for x
    x = 37,546,391.87/7,319.28
  6. Step 6: Final answer
    x = 5,129.79

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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.