Home / 2,861.08-4,289.10-1,217.32

Finding the Fourth Proportional to 2,861.08, 4,289.10 and 1,217.32

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Solution

The fourth proportional to 2,861.08, 4,289.10 and 1,217.32 is: 1,824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.08 : 4,289.10 = 1,217.32 : x
  2. Step 2: Convert to fraction form
    2,861.08/4,289.10 = 1,217.32/x
  3. Step 3: Cross multiply
    2,861.08x = 4,289.10 × 1,217.32
  4. Step 4: Simplify right side
    2,861.08x = 5,221,207.21
  5. Step 5: Solve for x
    x = 5,221,207.21/2,861.08
  6. Step 6: Final answer
    x = 1,824.91

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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.