Home / 2,812.58-4,219.26-2,768.12

Finding the Fourth Proportional to 2,812.58, 4,219.26 and 2,768.12

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Solution

The fourth proportional to 2,812.58, 4,219.26 and 2,768.12 is: 4,152.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.58 : 4,219.26 = 2,768.12 : x
  2. Step 2: Convert to fraction form
    2,812.58/4,219.26 = 2,768.12/x
  3. Step 3: Cross multiply
    2,812.58x = 4,219.26 × 2,768.12
  4. Step 4: Simplify right side
    2,812.58x = 11,679,417.99
  5. Step 5: Solve for x
    x = 11,679,417.99/2,812.58
  6. Step 6: Final answer
    x = 4,152.56

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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.