Home / 5,320.28-7,342.90-3,081.80

Finding the Fourth Proportional to 5,320.28, 7,342.90 and 3,081.80

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Solution

The fourth proportional to 5,320.28, 7,342.90 and 3,081.80 is: 4,253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.28 : 7,342.90 = 3,081.80 : x
  2. Step 2: Convert to fraction form
    5,320.28/7,342.90 = 3,081.80/x
  3. Step 3: Cross multiply
    5,320.28x = 7,342.90 × 3,081.80
  4. Step 4: Simplify right side
    5,320.28x = 22,629,349.22
  5. Step 5: Solve for x
    x = 22,629,349.22/5,320.28
  6. Step 6: Final answer
    x = 4,253.41

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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.