Home / 4,154.76-5,735.34-2,831.40

Finding the Fourth Proportional to 4,154.76, 5,735.34 and 2,831.40

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Solution

The fourth proportional to 4,154.76, 5,735.34 and 2,831.40 is: 3,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154.76 : 5,735.34 = 2,831.40 : x
  2. Step 2: Convert to fraction form
    4,154.76/5,735.34 = 2,831.40/x
  3. Step 3: Cross multiply
    4,154.76x = 5,735.34 × 2,831.40
  4. Step 4: Simplify right side
    4,154.76x = 16,239,041.68
  5. Step 5: Solve for x
    x = 16,239,041.68/4,154.76
  6. Step 6: Final answer
    x = 3,908.54

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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.