Home / 3,057.75-4,219.70-1,660.50

Finding the Fourth Proportional to 3,057.75, 4,219.70 and 1,660.50

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Solution

The fourth proportional to 3,057.75, 4,219.70 and 1,660.50 is: 2,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.75 : 4,219.70 = 1,660.50 : x
  2. Step 2: Convert to fraction form
    3,057.75/4,219.70 = 1,660.50/x
  3. Step 3: Cross multiply
    3,057.75x = 4,219.70 × 1,660.50
  4. Step 4: Simplify right side
    3,057.75x = 7,006,803.55
  5. Step 5: Solve for x
    x = 7,006,803.55/3,057.75
  6. Step 6: Final answer
    x = 2,291.49

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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.