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Finding the Fourth Proportional to 3,146.08, 4,718.84 and 955.30

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Solution

The fourth proportional to 3,146.08, 4,718.84 and 955.30 is: 1,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.08 : 4,718.84 = 955.30 : x
  2. Step 2: Convert to fraction form
    3,146.08/4,718.84 = 955.30/x
  3. Step 3: Cross multiply
    3,146.08x = 4,718.84 × 955.30
  4. Step 4: Simplify right side
    3,146.08x = 4,507,907.85
  5. Step 5: Solve for x
    x = 4,507,907.85/3,146.08
  6. Step 6: Final answer
    x = 1,432.86

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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.