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Finding the Fourth Proportional to 3,485.88, 5,230.08 and 1,753.20

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Solution

The fourth proportional to 3,485.88, 5,230.08 and 1,753.20 is: 2,630.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.88 : 5,230.08 = 1,753.20 : x
  2. Step 2: Convert to fraction form
    3,485.88/5,230.08 = 1,753.20/x
  3. Step 3: Cross multiply
    3,485.88x = 5,230.08 × 1,753.20
  4. Step 4: Simplify right side
    3,485.88x = 9,169,376.26
  5. Step 5: Solve for x
    x = 9,169,376.26/3,485.88
  6. Step 6: Final answer
    x = 2,630.43

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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.