Home / 2,907.11-4,011.55-1,648.28

Finding the Fourth Proportional to 2,907.11, 4,011.55 and 1,648.28

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Solution

The fourth proportional to 2,907.11, 4,011.55 and 1,648.28 is: 2,274.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.11 : 4,011.55 = 1,648.28 : x
  2. Step 2: Convert to fraction form
    2,907.11/4,011.55 = 1,648.28/x
  3. Step 3: Cross multiply
    2,907.11x = 4,011.55 × 1,648.28
  4. Step 4: Simplify right side
    2,907.11x = 6,612,163.54
  5. Step 5: Solve for x
    x = 6,612,163.54/2,907.11
  6. Step 6: Final answer
    x = 2,274.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.