Home / 3,118.51-4,677.77-2,928.43

Finding the Fourth Proportional to 3,118.51, 4,677.77 and 2,928.43

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Solution

The fourth proportional to 3,118.51, 4,677.77 and 2,928.43 is: 4,392.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.51 : 4,677.77 = 2,928.43 : x
  2. Step 2: Convert to fraction form
    3,118.51/4,677.77 = 2,928.43/x
  3. Step 3: Cross multiply
    3,118.51x = 4,677.77 × 2,928.43
  4. Step 4: Simplify right side
    3,118.51x = 13,698,522.00
  5. Step 5: Solve for x
    x = 13,698,522.00/3,118.51
  6. Step 6: Final answer
    x = 4,392.65

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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.