Home / 4,458.68-6,688.86-1,993.60

Finding the Fourth Proportional to 4,458.68, 6,688.86 and 1,993.60

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Solution

The fourth proportional to 4,458.68, 6,688.86 and 1,993.60 is: 2,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,458.68 : 6,688.86 = 1,993.60 : x
  2. Step 2: Convert to fraction form
    4,458.68/6,688.86 = 1,993.60/x
  3. Step 3: Cross multiply
    4,458.68x = 6,688.86 × 1,993.60
  4. Step 4: Simplify right side
    4,458.68x = 13,334,911.30
  5. Step 5: Solve for x
    x = 13,334,911.30/4,458.68
  6. Step 6: Final answer
    x = 2,990.78

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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.