Home / 5,309.31-7,318.44-4,880.55

Finding the Fourth Proportional to 5,309.31, 7,318.44 and 4,880.55

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Solution

The fourth proportional to 5,309.31, 7,318.44 and 4,880.55 is: 6,727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.31 : 7,318.44 = 4,880.55 : x
  2. Step 2: Convert to fraction form
    5,309.31/7,318.44 = 4,880.55/x
  3. Step 3: Cross multiply
    5,309.31x = 7,318.44 × 4,880.55
  4. Step 4: Simplify right side
    5,309.31x = 35,718,012.34
  5. Step 5: Solve for x
    x = 35,718,012.34/5,309.31
  6. Step 6: Final answer
    x = 6,727.43

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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.