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Finding the Fourth Proportional to 3,489.63, 4,815.73 and 2,074.08

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Solution

The fourth proportional to 3,489.63, 4,815.73 and 2,074.08 is: 2,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.63 : 4,815.73 = 2,074.08 : x
  2. Step 2: Convert to fraction form
    3,489.63/4,815.73 = 2,074.08/x
  3. Step 3: Cross multiply
    3,489.63x = 4,815.73 × 2,074.08
  4. Step 4: Simplify right side
    3,489.63x = 9,988,210.55
  5. Step 5: Solve for x
    x = 9,988,210.55/3,489.63
  6. Step 6: Final answer
    x = 2,862.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.