Home / 2,933.90-4,379.87-2,831.34

Finding the Fourth Proportional to 2,933.90, 4,379.87 and 2,831.34

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Solution

The fourth proportional to 2,933.90, 4,379.87 and 2,831.34 is: 4,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,933.90 : 4,379.87 = 2,831.34 : x
  2. Step 2: Convert to fraction form
    2,933.90/4,379.87 = 2,831.34/x
  3. Step 3: Cross multiply
    2,933.90x = 4,379.87 × 2,831.34
  4. Step 4: Simplify right side
    2,933.90x = 12,400,901.13
  5. Step 5: Solve for x
    x = 12,400,901.13/2,933.90
  6. Step 6: Final answer
    x = 4,226.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.