Home / 2,892.21-4,338.84-918.33

Finding the Fourth Proportional to 2,892.21, 4,338.84 and 918.33

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Solution

The fourth proportional to 2,892.21, 4,338.84 and 918.33 is: 1,377.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.21 : 4,338.84 = 918.33 : x
  2. Step 2: Convert to fraction form
    2,892.21/4,338.84 = 918.33/x
  3. Step 3: Cross multiply
    2,892.21x = 4,338.84 × 918.33
  4. Step 4: Simplify right side
    2,892.21x = 3,984,486.94
  5. Step 5: Solve for x
    x = 3,984,486.94/2,892.21
  6. Step 6: Final answer
    x = 1,377.66

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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.