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Finding the Fourth Proportional to 3,470.22, 4,789.02 and 1,898.32

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Solution

The fourth proportional to 3,470.22, 4,789.02 and 1,898.32 is: 2,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.22 : 4,789.02 = 1,898.32 : x
  2. Step 2: Convert to fraction form
    3,470.22/4,789.02 = 1,898.32/x
  3. Step 3: Cross multiply
    3,470.22x = 4,789.02 × 1,898.32
  4. Step 4: Simplify right side
    3,470.22x = 9,091,080.47
  5. Step 5: Solve for x
    x = 9,091,080.47/3,470.22
  6. Step 6: Final answer
    x = 2,619.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.