Home / 5,289.39-7,299.59-3,519.81

Finding the Fourth Proportional to 5,289.39, 7,299.59 and 3,519.81

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Solution

The fourth proportional to 5,289.39, 7,299.59 and 3,519.81 is: 4,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.39 : 7,299.59 = 3,519.81 : x
  2. Step 2: Convert to fraction form
    5,289.39/7,299.59 = 3,519.81/x
  3. Step 3: Cross multiply
    5,289.39x = 7,299.59 × 3,519.81
  4. Step 4: Simplify right side
    5,289.39x = 25,693,152.28
  5. Step 5: Solve for x
    x = 25,693,152.28/5,289.39
  6. Step 6: Final answer
    x = 4,857.49

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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.