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Finding the Fourth Proportional to 2,636.52, 3,639.60 and 1,853.52

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Solution

The fourth proportional to 2,636.52, 3,639.60 and 1,853.52 is: 2,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.52 : 3,639.60 = 1,853.52 : x
  2. Step 2: Convert to fraction form
    2,636.52/3,639.60 = 1,853.52/x
  3. Step 3: Cross multiply
    2,636.52x = 3,639.60 × 1,853.52
  4. Step 4: Simplify right side
    2,636.52x = 6,746,071.39
  5. Step 5: Solve for x
    x = 6,746,071.39/2,636.52
  6. Step 6: Final answer
    x = 2,558.70

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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.