Home / 3,486.51-4,811.39-1,914.70

Finding the Fourth Proportional to 3,486.51, 4,811.39 and 1,914.70

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Solution

The fourth proportional to 3,486.51, 4,811.39 and 1,914.70 is: 2,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.51 : 4,811.39 = 1,914.70 : x
  2. Step 2: Convert to fraction form
    3,486.51/4,811.39 = 1,914.70/x
  3. Step 3: Cross multiply
    3,486.51x = 4,811.39 × 1,914.70
  4. Step 4: Simplify right side
    3,486.51x = 9,212,358.86
  5. Step 5: Solve for x
    x = 9,212,358.86/3,486.51
  6. Step 6: Final answer
    x = 2,642.29

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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.