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Finding the Fourth Proportional to 3,017.60, 4,528.08 and 1,721.60

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Solution

The fourth proportional to 3,017.60, 4,528.08 and 1,721.60 is: 2,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.60 : 4,528.08 = 1,721.60 : x
  2. Step 2: Convert to fraction form
    3,017.60/4,528.08 = 1,721.60/x
  3. Step 3: Cross multiply
    3,017.60x = 4,528.08 × 1,721.60
  4. Step 4: Simplify right side
    3,017.60x = 7,795,542.53
  5. Step 5: Solve for x
    x = 7,795,542.53/3,017.60
  6. Step 6: Final answer
    x = 2,583.36

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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.