Home / 4,702.78-7,054.30-2,621.62

Finding the Fourth Proportional to 4,702.78, 7,054.30 and 2,621.62

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Solution

The fourth proportional to 4,702.78, 7,054.30 and 2,621.62 is: 3,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.78 : 7,054.30 = 2,621.62 : x
  2. Step 2: Convert to fraction form
    4,702.78/7,054.30 = 2,621.62/x
  3. Step 3: Cross multiply
    4,702.78x = 7,054.30 × 2,621.62
  4. Step 4: Simplify right side
    4,702.78x = 18,493,693.97
  5. Step 5: Solve for x
    x = 18,493,693.97/4,702.78
  6. Step 6: Final answer
    x = 3,932.50

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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.