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Finding the Fourth Proportional to 2,133.51, 2,932.81 and 1,907.07

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Solution

The fourth proportional to 2,133.51, 2,932.81 and 1,907.07 is: 2,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.51 : 2,932.81 = 1,907.07 : x
  2. Step 2: Convert to fraction form
    2,133.51/2,932.81 = 1,907.07/x
  3. Step 3: Cross multiply
    2,133.51x = 2,932.81 × 1,907.07
  4. Step 4: Simplify right side
    2,133.51x = 5,593,073.97
  5. Step 5: Solve for x
    x = 5,593,073.97/2,133.51
  6. Step 6: Final answer
    x = 2,621.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.