Home / 6,831.48-10,238.70-2,931.36

Finding the Fourth Proportional to 6,831.48, 10,238.70 and 2,931.36

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Solution

The fourth proportional to 6,831.48, 10,238.70 and 2,931.36 is: 4,393.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831.48 : 10,238.70 = 2,931.36 : x
  2. Step 2: Convert to fraction form
    6,831.48/10,238.70 = 2,931.36/x
  3. Step 3: Cross multiply
    6,831.48x = 10,238.70 × 2,931.36
  4. Step 4: Simplify right side
    6,831.48x = 30,013,315.63
  5. Step 5: Solve for x
    x = 30,013,315.63/6,831.48
  6. Step 6: Final answer
    x = 4,393.38

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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.