Home / 3,210.62-4,431.83-1,885.43

Finding the Fourth Proportional to 3,210.62, 4,431.83 and 1,885.43

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Solution

The fourth proportional to 3,210.62, 4,431.83 and 1,885.43 is: 2,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.62 : 4,431.83 = 1,885.43 : x
  2. Step 2: Convert to fraction form
    3,210.62/4,431.83 = 1,885.43/x
  3. Step 3: Cross multiply
    3,210.62x = 4,431.83 × 1,885.43
  4. Step 4: Simplify right side
    3,210.62x = 8,355,905.24
  5. Step 5: Solve for x
    x = 8,355,905.24/3,210.62
  6. Step 6: Final answer
    x = 2,602.58

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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.