Home / 4,955.85-6,838.56-2,831.91

Finding the Fourth Proportional to 4,955.85, 6,838.56 and 2,831.91

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Solution

The fourth proportional to 4,955.85, 6,838.56 and 2,831.91 is: 3,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.85 : 6,838.56 = 2,831.91 : x
  2. Step 2: Convert to fraction form
    4,955.85/6,838.56 = 2,831.91/x
  3. Step 3: Cross multiply
    4,955.85x = 6,838.56 × 2,831.91
  4. Step 4: Simplify right side
    4,955.85x = 19,366,199.27
  5. Step 5: Solve for x
    x = 19,366,199.27/4,955.85
  6. Step 6: Final answer
    x = 3,907.75

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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.