Home / 4,917.51-6,786.99-2,928.76

Finding the Fourth Proportional to 4,917.51, 6,786.99 and 2,928.76

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Solution

The fourth proportional to 4,917.51, 6,786.99 and 2,928.76 is: 4,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.51 : 6,786.99 = 2,928.76 : x
  2. Step 2: Convert to fraction form
    4,917.51/6,786.99 = 2,928.76/x
  3. Step 3: Cross multiply
    4,917.51x = 6,786.99 × 2,928.76
  4. Step 4: Simplify right side
    4,917.51x = 19,877,447.86
  5. Step 5: Solve for x
    x = 19,877,447.86/4,917.51
  6. Step 6: Final answer
    x = 4,042.18

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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.