Home / 5,309.68-7,328.28-3,319.60

Finding the Fourth Proportional to 5,309.68, 7,328.28 and 3,319.60

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Solution

The fourth proportional to 5,309.68, 7,328.28 and 3,319.60 is: 4,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.68 : 7,328.28 = 3,319.60 : x
  2. Step 2: Convert to fraction form
    5,309.68/7,328.28 = 3,319.60/x
  3. Step 3: Cross multiply
    5,309.68x = 7,328.28 × 3,319.60
  4. Step 4: Simplify right side
    5,309.68x = 24,326,958.29
  5. Step 5: Solve for x
    x = 24,326,958.29/5,309.68
  6. Step 6: Final answer
    x = 4,581.62

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1.5x scale

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.