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Finding the Fourth Proportional to 3,485.88, 5,225.88 and 1,636.08

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Solution

The fourth proportional to 3,485.88, 5,225.88 and 1,636.08 is: 2,452.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.88 : 5,225.88 = 1,636.08 : x
  2. Step 2: Convert to fraction form
    3,485.88/5,225.88 = 1,636.08/x
  3. Step 3: Cross multiply
    3,485.88x = 5,225.88 × 1,636.08
  4. Step 4: Simplify right side
    3,485.88x = 8,549,957.75
  5. Step 5: Solve for x
    x = 8,549,957.75/3,485.88
  6. Step 6: Final answer
    x = 2,452.74

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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.