Home / 5,118.36-7,677.48-1,831.68

Finding the Fourth Proportional to 5,118.36, 7,677.48 and 1,831.68

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Solution

The fourth proportional to 5,118.36, 7,677.48 and 1,831.68 is: 2,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.36 : 7,677.48 = 1,831.68 : x
  2. Step 2: Convert to fraction form
    5,118.36/7,677.48 = 1,831.68/x
  3. Step 3: Cross multiply
    5,118.36x = 7,677.48 × 1,831.68
  4. Step 4: Simplify right side
    5,118.36x = 14,062,686.57
  5. Step 5: Solve for x
    x = 14,062,686.57/5,118.36
  6. Step 6: Final answer
    x = 2,747.50

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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.