Home / 5,075.19-7,003.81-2,806.50

Finding the Fourth Proportional to 5,075.19, 7,003.81 and 2,806.50

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Solution

The fourth proportional to 5,075.19, 7,003.81 and 2,806.50 is: 3,873.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.19 : 7,003.81 = 2,806.50 : x
  2. Step 2: Convert to fraction form
    5,075.19/7,003.81 = 2,806.50/x
  3. Step 3: Cross multiply
    5,075.19x = 7,003.81 × 2,806.50
  4. Step 4: Simplify right side
    5,075.19x = 19,656,230.43
  5. Step 5: Solve for x
    x = 19,656,230.43/5,075.19
  6. Step 6: Final answer
    x = 3,873.00

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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.