Home / 2,688.68-4,033.53-933.61

Finding the Fourth Proportional to 2,688.68, 4,033.53 and 933.61

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Solution

The fourth proportional to 2,688.68, 4,033.53 and 933.61 is: 1,400.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.68 : 4,033.53 = 933.61 : x
  2. Step 2: Convert to fraction form
    2,688.68/4,033.53 = 933.61/x
  3. Step 3: Cross multiply
    2,688.68x = 4,033.53 × 933.61
  4. Step 4: Simplify right side
    2,688.68x = 3,765,739.28
  5. Step 5: Solve for x
    x = 3,765,739.28/2,688.68
  6. Step 6: Final answer
    x = 1,400.59

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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.