Home / 3,246.70-4,861.95-2,145.10

Finding the Fourth Proportional to 3,246.70, 4,861.95 and 2,145.10

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Solution

The fourth proportional to 3,246.70, 4,861.95 and 2,145.10 is: 3,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.70 : 4,861.95 = 2,145.10 : x
  2. Step 2: Convert to fraction form
    3,246.70/4,861.95 = 2,145.10/x
  3. Step 3: Cross multiply
    3,246.70x = 4,861.95 × 2,145.10
  4. Step 4: Simplify right side
    3,246.70x = 10,429,368.95
  5. Step 5: Solve for x
    x = 10,429,368.95/3,246.70
  6. Step 6: Final answer
    x = 3,212.30

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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.