Home / 3,211.14-4,816.70-1,210.20

Finding the Fourth Proportional to 3,211.14, 4,816.70 and 1,210.20

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Solution

The fourth proportional to 3,211.14, 4,816.70 and 1,210.20 is: 1,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.14 : 4,816.70 = 1,210.20 : x
  2. Step 2: Convert to fraction form
    3,211.14/4,816.70 = 1,210.20/x
  3. Step 3: Cross multiply
    3,211.14x = 4,816.70 × 1,210.20
  4. Step 4: Simplify right side
    3,211.14x = 5,829,170.34
  5. Step 5: Solve for x
    x = 5,829,170.34/3,211.14
  6. Step 6: Final answer
    x = 1,815.30

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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.