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Finding the Fourth Proportional to 3,528.88, 4,833.94 and 3,490

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Solution

The fourth proportional to 3,528.88, 4,833.94 and 3,490 is: 4,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.88 : 4,833.94 = 3,490 : x
  2. Step 2: Convert to fraction form
    3,528.88/4,833.94 = 3,490/x
  3. Step 3: Cross multiply
    3,528.88x = 4,833.94 × 3,490
  4. Step 4: Simplify right side
    3,528.88x = 16,870,450.60
  5. Step 5: Solve for x
    x = 16,870,450.60/3,528.88
  6. Step 6: Final answer
    x = 4,780.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.