Home / 3,540.08-4,885.40-1,968.16

Finding the Fourth Proportional to 3,540.08, 4,885.40 and 1,968.16

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Solution

The fourth proportional to 3,540.08, 4,885.40 and 1,968.16 is: 2,716.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.08 : 4,885.40 = 1,968.16 : x
  2. Step 2: Convert to fraction form
    3,540.08/4,885.40 = 1,968.16/x
  3. Step 3: Cross multiply
    3,540.08x = 4,885.40 × 1,968.16
  4. Step 4: Simplify right side
    3,540.08x = 9,615,248.86
  5. Step 5: Solve for x
    x = 9,615,248.86/3,540.08
  6. Step 6: Final answer
    x = 2,716.11

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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.