Home / 3,196.60-4,785.30-2,812.60

Finding the Fourth Proportional to 3,196.60, 4,785.30 and 2,812.60

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Solution

The fourth proportional to 3,196.60, 4,785.30 and 2,812.60 is: 4,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196.60 : 4,785.30 = 2,812.60 : x
  2. Step 2: Convert to fraction form
    3,196.60/4,785.30 = 2,812.60/x
  3. Step 3: Cross multiply
    3,196.60x = 4,785.30 × 2,812.60
  4. Step 4: Simplify right side
    3,196.60x = 13,459,134.78
  5. Step 5: Solve for x
    x = 13,459,134.78/3,196.60
  6. Step 6: Final answer
    x = 4,210.45

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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.