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Finding the Fourth Proportional to 3,653.76, 5,483.71 and 1,899.84

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Solution

The fourth proportional to 3,653.76, 5,483.71 and 1,899.84 is: 2,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.76 : 5,483.71 = 1,899.84 : x
  2. Step 2: Convert to fraction form
    3,653.76/5,483.71 = 1,899.84/x
  3. Step 3: Cross multiply
    3,653.76x = 5,483.71 × 1,899.84
  4. Step 4: Simplify right side
    3,653.76x = 10,418,162.11
  5. Step 5: Solve for x
    x = 10,418,162.11/3,653.76
  6. Step 6: Final answer
    x = 2,851.35

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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.