Home / 2,907.90-4,354.56-2,320.38

Finding the Fourth Proportional to 2,907.90, 4,354.56 and 2,320.38

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Solution

The fourth proportional to 2,907.90, 4,354.56 and 2,320.38 is: 3,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.90 : 4,354.56 = 2,320.38 : x
  2. Step 2: Convert to fraction form
    2,907.90/4,354.56 = 2,320.38/x
  3. Step 3: Cross multiply
    2,907.90x = 4,354.56 × 2,320.38
  4. Step 4: Simplify right side
    2,907.90x = 10,104,233.93
  5. Step 5: Solve for x
    x = 10,104,233.93/2,907.90
  6. Step 6: Final answer
    x = 3,474.75

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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.