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Finding the Fourth Proportional to 4,375.78, 6,563.06 and 1,256.06

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Solution

The fourth proportional to 4,375.78, 6,563.06 and 1,256.06 is: 1,883.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,375.78 : 6,563.06 = 1,256.06 : x
  2. Step 2: Convert to fraction form
    4,375.78/6,563.06 = 1,256.06/x
  3. Step 3: Cross multiply
    4,375.78x = 6,563.06 × 1,256.06
  4. Step 4: Simplify right side
    4,375.78x = 8,243,597.14
  5. Step 5: Solve for x
    x = 8,243,597.14/4,375.78
  6. Step 6: Final answer
    x = 1,883.91

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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.