Home / 2,831.12-3,907.14-1,589.12

Finding the Fourth Proportional to 2,831.12, 3,907.14 and 1,589.12

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Solution

The fourth proportional to 2,831.12, 3,907.14 and 1,589.12 is: 2,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.12 : 3,907.14 = 1,589.12 : x
  2. Step 2: Convert to fraction form
    2,831.12/3,907.14 = 1,589.12/x
  3. Step 3: Cross multiply
    2,831.12x = 3,907.14 × 1,589.12
  4. Step 4: Simplify right side
    2,831.12x = 6,208,914.32
  5. Step 5: Solve for x
    x = 6,208,914.32/2,831.12
  6. Step 6: Final answer
    x = 2,193.09

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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.