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Finding the Fourth Proportional to 2,750.63, 4,126.55 and 1,019.25

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Solution

The fourth proportional to 2,750.63, 4,126.55 and 1,019.25 is: 1,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.63 : 4,126.55 = 1,019.25 : x
  2. Step 2: Convert to fraction form
    2,750.63/4,126.55 = 1,019.25/x
  3. Step 3: Cross multiply
    2,750.63x = 4,126.55 × 1,019.25
  4. Step 4: Simplify right side
    2,750.63x = 4,205,980.99
  5. Step 5: Solve for x
    x = 4,205,980.99/2,750.63
  6. Step 6: Final answer
    x = 1,529.10

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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.