Home / 3,122.98-4,309.63-1,706.67

Finding the Fourth Proportional to 3,122.98, 4,309.63 and 1,706.67

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Solution

The fourth proportional to 3,122.98, 4,309.63 and 1,706.67 is: 2,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.98 : 4,309.63 = 1,706.67 : x
  2. Step 2: Convert to fraction form
    3,122.98/4,309.63 = 1,706.67/x
  3. Step 3: Cross multiply
    3,122.98x = 4,309.63 × 1,706.67
  4. Step 4: Simplify right side
    3,122.98x = 7,355,086.15
  5. Step 5: Solve for x
    x = 7,355,086.15/3,122.98
  6. Step 6: Final answer
    x = 2,355.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.