Home / 4,919.28-7,340.88-4,393.62

Finding the Fourth Proportional to 4,919.28, 7,340.88 and 4,393.62

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Solution

The fourth proportional to 4,919.28, 7,340.88 and 4,393.62 is: 6,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.28 : 7,340.88 = 4,393.62 : x
  2. Step 2: Convert to fraction form
    4,919.28/7,340.88 = 4,393.62/x
  3. Step 3: Cross multiply
    4,919.28x = 7,340.88 × 4,393.62
  4. Step 4: Simplify right side
    4,919.28x = 32,253,015.22
  5. Step 5: Solve for x
    x = 32,253,015.22/4,919.28
  6. Step 6: Final answer
    x = 6,556.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.