Home / 3,236.50-4,855.56-1,386.70

Finding the Fourth Proportional to 3,236.50, 4,855.56 and 1,386.70

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Solution

The fourth proportional to 3,236.50, 4,855.56 and 1,386.70 is: 2,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.50 : 4,855.56 = 1,386.70 : x
  2. Step 2: Convert to fraction form
    3,236.50/4,855.56 = 1,386.70/x
  3. Step 3: Cross multiply
    3,236.50x = 4,855.56 × 1,386.70
  4. Step 4: Simplify right side
    3,236.50x = 6,733,205.05
  5. Step 5: Solve for x
    x = 6,733,205.05/3,236.50
  6. Step 6: Final answer
    x = 2,080.40

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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.