Home / 5,282.96-7,923.83-1,387.67

Finding the Fourth Proportional to 5,282.96, 7,923.83 and 1,387.67

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Solution

The fourth proportional to 5,282.96, 7,923.83 and 1,387.67 is: 2,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.96 : 7,923.83 = 1,387.67 : x
  2. Step 2: Convert to fraction form
    5,282.96/7,923.83 = 1,387.67/x
  3. Step 3: Cross multiply
    5,282.96x = 7,923.83 × 1,387.67
  4. Step 4: Simplify right side
    5,282.96x = 10,995,661.18
  5. Step 5: Solve for x
    x = 10,995,661.18/5,282.96
  6. Step 6: Final answer
    x = 2,081.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.