Home / 5,109.49-7,666.67-2,918.84

Finding the Fourth Proportional to 5,109.49, 7,666.67 and 2,918.84

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Solution

The fourth proportional to 5,109.49, 7,666.67 and 2,918.84 is: 4,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.49 : 7,666.67 = 2,918.84 : x
  2. Step 2: Convert to fraction form
    5,109.49/7,666.67 = 2,918.84/x
  3. Step 3: Cross multiply
    5,109.49x = 7,666.67 × 2,918.84
  4. Step 4: Simplify right side
    5,109.49x = 22,377,787.64
  5. Step 5: Solve for x
    x = 22,377,787.64/5,109.49
  6. Step 6: Final answer
    x = 4,379.65

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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.