Home / 5,287.42-7,289.12-3,606.66

Finding the Fourth Proportional to 5,287.42, 7,289.12 and 3,606.66

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Solution

The fourth proportional to 5,287.42, 7,289.12 and 3,606.66 is: 4,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.42 : 7,289.12 = 3,606.66 : x
  2. Step 2: Convert to fraction form
    5,287.42/7,289.12 = 3,606.66/x
  3. Step 3: Cross multiply
    5,287.42x = 7,289.12 × 3,606.66
  4. Step 4: Simplify right side
    5,287.42x = 26,289,377.54
  5. Step 5: Solve for x
    x = 26,289,377.54/5,287.42
  6. Step 6: Final answer
    x = 4,972.06

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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.