Home / 5,133.84-7,716.81-3,390.05

Finding the Fourth Proportional to 5,133.84, 7,716.81 and 3,390.05

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Solution

The fourth proportional to 5,133.84, 7,716.81 and 3,390.05 is: 5,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.84 : 7,716.81 = 3,390.05 : x
  2. Step 2: Convert to fraction form
    5,133.84/7,716.81 = 3,390.05/x
  3. Step 3: Cross multiply
    5,133.84x = 7,716.81 × 3,390.05
  4. Step 4: Simplify right side
    5,133.84x = 26,160,333.16
  5. Step 5: Solve for x
    x = 26,160,333.16/5,133.84
  6. Step 6: Final answer
    x = 5,095.67

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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.