Home / 5,109.84-7,664.73-2,887.67

Finding the Fourth Proportional to 5,109.84, 7,664.73 and 2,887.67

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Solution

The fourth proportional to 5,109.84, 7,664.73 and 2,887.67 is: 4,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.84 : 7,664.73 = 2,887.67 : x
  2. Step 2: Convert to fraction form
    5,109.84/7,664.73 = 2,887.67/x
  3. Step 3: Cross multiply
    5,109.84x = 7,664.73 × 2,887.67
  4. Step 4: Simplify right side
    5,109.84x = 22,133,172.56
  5. Step 5: Solve for x
    x = 22,133,172.56/5,109.84
  6. Step 6: Final answer
    x = 4,331.48

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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.