Home / 3,014.87-4,160.69-1,688.55

Finding the Fourth Proportional to 3,014.87, 4,160.69 and 1,688.55

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Solution

The fourth proportional to 3,014.87, 4,160.69 and 1,688.55 is: 2,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.87 : 4,160.69 = 1,688.55 : x
  2. Step 2: Convert to fraction form
    3,014.87/4,160.69 = 1,688.55/x
  3. Step 3: Cross multiply
    3,014.87x = 4,160.69 × 1,688.55
  4. Step 4: Simplify right side
    3,014.87x = 7,025,524.66
  5. Step 5: Solve for x
    x = 7,025,524.66/3,014.87
  6. Step 6: Final answer
    x = 2,330.29

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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.