Home / 6,215.14-9,319.92-1,831.06

Finding the Fourth Proportional to 6,215.14, 9,319.92 and 1,831.06

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Solution

The fourth proportional to 6,215.14, 9,319.92 and 1,831.06 is: 2,745.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.14 : 9,319.92 = 1,831.06 : x
  2. Step 2: Convert to fraction form
    6,215.14/9,319.92 = 1,831.06/x
  3. Step 3: Cross multiply
    6,215.14x = 9,319.92 × 1,831.06
  4. Step 4: Simplify right side
    6,215.14x = 17,065,332.72
  5. Step 5: Solve for x
    x = 17,065,332.72/6,215.14
  6. Step 6: Final answer
    x = 2,745.77

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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.