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Finding the Fourth Proportional to 3,390.54, 5,095.08 and 1,831.68

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Solution

The fourth proportional to 3,390.54, 5,095.08 and 1,831.68 is: 2,752.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.54 : 5,095.08 = 1,831.68 : x
  2. Step 2: Convert to fraction form
    3,390.54/5,095.08 = 1,831.68/x
  3. Step 3: Cross multiply
    3,390.54x = 5,095.08 × 1,831.68
  4. Step 4: Simplify right side
    3,390.54x = 9,332,556.13
  5. Step 5: Solve for x
    x = 9,332,556.13/3,390.54
  6. Step 6: Final answer
    x = 2,752.53

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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.