Home / 2,918.05-4,377.08-1,069.36

Finding the Fourth Proportional to 2,918.05, 4,377.08 and 1,069.36

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Solution

The fourth proportional to 2,918.05, 4,377.08 and 1,069.36 is: 1,604.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.05 : 4,377.08 = 1,069.36 : x
  2. Step 2: Convert to fraction form
    2,918.05/4,377.08 = 1,069.36/x
  3. Step 3: Cross multiply
    2,918.05x = 4,377.08 × 1,069.36
  4. Step 4: Simplify right side
    2,918.05x = 4,680,674.27
  5. Step 5: Solve for x
    x = 4,680,674.27/2,918.05
  6. Step 6: Final answer
    x = 1,604.04

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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.