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Finding the Fourth Proportional to 3,253.87, 4,880.49 and 913.63

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Solution

The fourth proportional to 3,253.87, 4,880.49 and 913.63 is: 1,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.87 : 4,880.49 = 913.63 : x
  2. Step 2: Convert to fraction form
    3,253.87/4,880.49 = 913.63/x
  3. Step 3: Cross multiply
    3,253.87x = 4,880.49 × 913.63
  4. Step 4: Simplify right side
    3,253.87x = 4,458,962.08
  5. Step 5: Solve for x
    x = 4,458,962.08/3,253.87
  6. Step 6: Final answer
    x = 1,370.36

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1.5x scale

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.