Home / 5,161.87-7,123.38-2,804.00

Finding the Fourth Proportional to 5,161.87, 7,123.38 and 2,804.00

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Solution

The fourth proportional to 5,161.87, 7,123.38 and 2,804.00 is: 3,869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.87 : 7,123.38 = 2,804.00 : x
  2. Step 2: Convert to fraction form
    5,161.87/7,123.38 = 2,804.00/x
  3. Step 3: Cross multiply
    5,161.87x = 7,123.38 × 2,804.00
  4. Step 4: Simplify right side
    5,161.87x = 19,973,911.39
  5. Step 5: Solve for x
    x = 19,973,911.39/5,161.87
  6. Step 6: Final answer
    x = 3,869.51

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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.