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Finding the Fourth Proportional to 2,698.82, 4,048.28 and 750.99

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Solution

The fourth proportional to 2,698.82, 4,048.28 and 750.99 is: 1,126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.82 : 4,048.28 = 750.99 : x
  2. Step 2: Convert to fraction form
    2,698.82/4,048.28 = 750.99/x
  3. Step 3: Cross multiply
    2,698.82x = 4,048.28 × 750.99
  4. Step 4: Simplify right side
    2,698.82x = 3,040,214.04
  5. Step 5: Solve for x
    x = 3,040,214.04/2,698.82
  6. Step 6: Final answer
    x = 1,126.50

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1.5x scale

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.