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Finding the Fourth Proportional to 3,501.43, 4,831.97 and 1,929.51

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Solution

The fourth proportional to 3,501.43, 4,831.97 and 1,929.51 is: 2,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.43 : 4,831.97 = 1,929.51 : x
  2. Step 2: Convert to fraction form
    3,501.43/4,831.97 = 1,929.51/x
  3. Step 3: Cross multiply
    3,501.43x = 4,831.97 × 1,929.51
  4. Step 4: Simplify right side
    3,501.43x = 9,323,324.79
  5. Step 5: Solve for x
    x = 9,323,324.79/3,501.43
  6. Step 6: Final answer
    x = 2,662.72

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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.