Home / 7,011.20-10,518.78-2,854.19

Finding the Fourth Proportional to 7,011.20, 10,518.78 and 2,854.19

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Solution

The fourth proportional to 7,011.20, 10,518.78 and 2,854.19 is: 4,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.20 : 10,518.78 = 2,854.19 : x
  2. Step 2: Convert to fraction form
    7,011.20/10,518.78 = 2,854.19/x
  3. Step 3: Cross multiply
    7,011.20x = 10,518.78 × 2,854.19
  4. Step 4: Simplify right side
    7,011.20x = 30,022,596.69
  5. Step 5: Solve for x
    x = 30,022,596.69/7,011.20
  6. Step 6: Final answer
    x = 4,282.09

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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.