Home / 3,540.12-4,885.18-1,946.74

Finding the Fourth Proportional to 3,540.12, 4,885.18 and 1,946.74

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Solution

The fourth proportional to 3,540.12, 4,885.18 and 1,946.74 is: 2,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.12 : 4,885.18 = 1,946.74 : x
  2. Step 2: Convert to fraction form
    3,540.12/4,885.18 = 1,946.74/x
  3. Step 3: Cross multiply
    3,540.12x = 4,885.18 × 1,946.74
  4. Step 4: Simplify right side
    3,540.12x = 9,510,187.50
  5. Step 5: Solve for x
    x = 9,510,187.50/3,540.12
  6. Step 6: Final answer
    x = 2,686.40

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Double scale
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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.