Home / 3,315.92-4,574.96-1,989.14

Finding the Fourth Proportional to 3,315.92, 4,574.96 and 1,989.14

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Solution

The fourth proportional to 3,315.92, 4,574.96 and 1,989.14 is: 2,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.92 : 4,574.96 = 1,989.14 : x
  2. Step 2: Convert to fraction form
    3,315.92/4,574.96 = 1,989.14/x
  3. Step 3: Cross multiply
    3,315.92x = 4,574.96 × 1,989.14
  4. Step 4: Simplify right side
    3,315.92x = 9,100,235.93
  5. Step 5: Solve for x
    x = 9,100,235.93/3,315.92
  6. Step 6: Final answer
    x = 2,744.41

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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.