Home / 4,916.09-6,783.45-2,819.81

Finding the Fourth Proportional to 4,916.09, 6,783.45 and 2,819.81

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Solution

The fourth proportional to 4,916.09, 6,783.45 and 2,819.81 is: 3,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.09 : 6,783.45 = 2,819.81 : x
  2. Step 2: Convert to fraction form
    4,916.09/6,783.45 = 2,819.81/x
  3. Step 3: Cross multiply
    4,916.09x = 6,783.45 × 2,819.81
  4. Step 4: Simplify right side
    4,916.09x = 19,128,046.53
  5. Step 5: Solve for x
    x = 19,128,046.53/4,916.09
  6. Step 6: Final answer
    x = 3,890.90

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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.