Home / 3,014.85-4,160.68-1,688.56

Finding the Fourth Proportional to 3,014.85, 4,160.68 and 1,688.56

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Solution

The fourth proportional to 3,014.85, 4,160.68 and 1,688.56 is: 2,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.85 : 4,160.68 = 1,688.56 : x
  2. Step 2: Convert to fraction form
    3,014.85/4,160.68 = 1,688.56/x
  3. Step 3: Cross multiply
    3,014.85x = 4,160.68 × 1,688.56
  4. Step 4: Simplify right side
    3,014.85x = 7,025,557.82
  5. Step 5: Solve for x
    x = 7,025,557.82/3,014.85
  6. Step 6: Final answer
    x = 2,330.32

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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.