Home / 7,890.36-11,831.38-2,342.94

Finding the Fourth Proportional to 7,890.36, 11,831.38 and 2,342.94

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Solution

The fourth proportional to 7,890.36, 11,831.38 and 2,342.94 is: 3,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.36 : 11,831.38 = 2,342.94 : x
  2. Step 2: Convert to fraction form
    7,890.36/11,831.38 = 2,342.94/x
  3. Step 3: Cross multiply
    7,890.36x = 11,831.38 × 2,342.94
  4. Step 4: Simplify right side
    7,890.36x = 27,720,213.46
  5. Step 5: Solve for x
    x = 27,720,213.46/7,890.36
  6. Step 6: Final answer
    x = 3,513.17

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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.