Home / 4,914.10-6,780.33-2,789.11

Finding the Fourth Proportional to 4,914.10, 6,780.33 and 2,789.11

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Solution

The fourth proportional to 4,914.10, 6,780.33 and 2,789.11 is: 3,848.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.10 : 6,780.33 = 2,789.11 : x
  2. Step 2: Convert to fraction form
    4,914.10/6,780.33 = 2,789.11/x
  3. Step 3: Cross multiply
    4,914.10x = 6,780.33 × 2,789.11
  4. Step 4: Simplify right side
    4,914.10x = 18,911,069.26
  5. Step 5: Solve for x
    x = 18,911,069.26/4,914.10
  6. Step 6: Final answer
    x = 3,848.33

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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.