Home / 5,287.62-7,291.88-3,162.81

Finding the Fourth Proportional to 5,287.62, 7,291.88 and 3,162.81

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Solution

The fourth proportional to 5,287.62, 7,291.88 and 3,162.81 is: 4,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.62 : 7,291.88 = 3,162.81 : x
  2. Step 2: Convert to fraction form
    5,287.62/7,291.88 = 3,162.81/x
  3. Step 3: Cross multiply
    5,287.62x = 7,291.88 × 3,162.81
  4. Step 4: Simplify right side
    5,287.62x = 23,062,830.98
  5. Step 5: Solve for x
    x = 23,062,830.98/5,287.62
  6. Step 6: Final answer
    x = 4,361.67

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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.