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Finding the Fourth Proportional to 2,756.11, 4,133.75 and 907.27

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Solution

The fourth proportional to 2,756.11, 4,133.75 and 907.27 is: 1,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.11 : 4,133.75 = 907.27 : x
  2. Step 2: Convert to fraction form
    2,756.11/4,133.75 = 907.27/x
  3. Step 3: Cross multiply
    2,756.11x = 4,133.75 × 907.27
  4. Step 4: Simplify right side
    2,756.11x = 3,750,427.36
  5. Step 5: Solve for x
    x = 3,750,427.36/2,756.11
  6. Step 6: Final answer
    x = 1,360.77

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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.