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Finding the Fourth Proportional to 2,635.08, 3,951.78 and 1,075.08

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Solution

The fourth proportional to 2,635.08, 3,951.78 and 1,075.08 is: 1,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.08 : 3,951.78 = 1,075.08 : x
  2. Step 2: Convert to fraction form
    2,635.08/3,951.78 = 1,075.08/x
  3. Step 3: Cross multiply
    2,635.08x = 3,951.78 × 1,075.08
  4. Step 4: Simplify right side
    2,635.08x = 4,248,479.64
  5. Step 5: Solve for x
    x = 4,248,479.64/2,635.08
  6. Step 6: Final answer
    x = 1,612.28

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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.