Home / 3,074.85-4,606.20-1,685.70

Finding the Fourth Proportional to 3,074.85, 4,606.20 and 1,685.70

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Solution

The fourth proportional to 3,074.85, 4,606.20 and 1,685.70 is: 2,525.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.85 : 4,606.20 = 1,685.70 : x
  2. Step 2: Convert to fraction form
    3,074.85/4,606.20 = 1,685.70/x
  3. Step 3: Cross multiply
    3,074.85x = 4,606.20 × 1,685.70
  4. Step 4: Simplify right side
    3,074.85x = 7,764,671.34
  5. Step 5: Solve for x
    x = 7,764,671.34/3,074.85
  6. Step 6: Final answer
    x = 2,525.22

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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.