Home / 7,214.34-10,819.74-2,771.10

Finding the Fourth Proportional to 7,214.34, 10,819.74 and 2,771.10

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Solution

The fourth proportional to 7,214.34, 10,819.74 and 2,771.10 is: 4,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.34 : 10,819.74 = 2,771.10 : x
  2. Step 2: Convert to fraction form
    7,214.34/10,819.74 = 2,771.10/x
  3. Step 3: Cross multiply
    7,214.34x = 10,819.74 × 2,771.10
  4. Step 4: Simplify right side
    7,214.34x = 29,982,581.51
  5. Step 5: Solve for x
    x = 29,982,581.51/7,214.34
  6. Step 6: Final answer
    x = 4,155.97

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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.