Home / 2,756.05-4,134.80-907.45

Finding the Fourth Proportional to 2,756.05, 4,134.80 and 907.45

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Solution

The fourth proportional to 2,756.05, 4,134.80 and 907.45 is: 1,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.05 : 4,134.80 = 907.45 : x
  2. Step 2: Convert to fraction form
    2,756.05/4,134.80 = 907.45/x
  3. Step 3: Cross multiply
    2,756.05x = 4,134.80 × 907.45
  4. Step 4: Simplify right side
    2,756.05x = 3,752,124.26
  5. Step 5: Solve for x
    x = 3,752,124.26/2,756.05
  6. Step 6: Final answer
    x = 1,361.41

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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.