Home / 2,861.28-4,288.08-2,354.40

Finding the Fourth Proportional to 2,861.28, 4,288.08 and 2,354.40

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Solution

The fourth proportional to 2,861.28, 4,288.08 and 2,354.40 is: 3,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.28 : 4,288.08 = 2,354.40 : x
  2. Step 2: Convert to fraction form
    2,861.28/4,288.08 = 2,354.40/x
  3. Step 3: Cross multiply
    2,861.28x = 4,288.08 × 2,354.40
  4. Step 4: Simplify right side
    2,861.28x = 10,095,855.55
  5. Step 5: Solve for x
    x = 10,095,855.55/2,861.28
  6. Step 6: Final answer
    x = 3,528.44

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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.