Home / 3,378.08-4,661.28-2,051.76

Finding the Fourth Proportional to 3,378.08, 4,661.28 and 2,051.76

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Solution

The fourth proportional to 3,378.08, 4,661.28 and 2,051.76 is: 2,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.08 : 4,661.28 = 2,051.76 : x
  2. Step 2: Convert to fraction form
    3,378.08/4,661.28 = 2,051.76/x
  3. Step 3: Cross multiply
    3,378.08x = 4,661.28 × 2,051.76
  4. Step 4: Simplify right side
    3,378.08x = 9,563,845.33
  5. Step 5: Solve for x
    x = 9,563,845.33/3,378.08
  6. Step 6: Final answer
    x = 2,831.15

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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.