Home / 2,816.49-4,222.59-1,705.67

Finding the Fourth Proportional to 2,816.49, 4,222.59 and 1,705.67

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Solution

The fourth proportional to 2,816.49, 4,222.59 and 1,705.67 is: 2,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.49 : 4,222.59 = 1,705.67 : x
  2. Step 2: Convert to fraction form
    2,816.49/4,222.59 = 1,705.67/x
  3. Step 3: Cross multiply
    2,816.49x = 4,222.59 × 1,705.67
  4. Step 4: Simplify right side
    2,816.49x = 7,202,345.09
  5. Step 5: Solve for x
    x = 7,202,345.09/2,816.49
  6. Step 6: Final answer
    x = 2,557.21

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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.