Home / 2,819.28-4,206.98-2,528.72

Finding the Fourth Proportional to 2,819.28, 4,206.98 and 2,528.72

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Solution

The fourth proportional to 2,819.28, 4,206.98 and 2,528.72 is: 3,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.28 : 4,206.98 = 2,528.72 : x
  2. Step 2: Convert to fraction form
    2,819.28/4,206.98 = 2,528.72/x
  3. Step 3: Cross multiply
    2,819.28x = 4,206.98 × 2,528.72
  4. Step 4: Simplify right side
    2,819.28x = 10,638,274.47
  5. Step 5: Solve for x
    x = 10,638,274.47/2,819.28
  6. Step 6: Final answer
    x = 3,773.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.