Home / 3,831.32-5,288.56-2,415.98

Finding the Fourth Proportional to 3,831.32, 5,288.56 and 2,415.98

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Solution

The fourth proportional to 3,831.32, 5,288.56 and 2,415.98 is: 3,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.32 : 5,288.56 = 2,415.98 : x
  2. Step 2: Convert to fraction form
    3,831.32/5,288.56 = 2,415.98/x
  3. Step 3: Cross multiply
    3,831.32x = 5,288.56 × 2,415.98
  4. Step 4: Simplify right side
    3,831.32x = 12,777,055.19
  5. Step 5: Solve for x
    x = 12,777,055.19/3,831.32
  6. Step 6: Final answer
    x = 3,334.90

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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.