Home / 3,155.12-4,729.14-1,073.18

Finding the Fourth Proportional to 3,155.12, 4,729.14 and 1,073.18

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Solution

The fourth proportional to 3,155.12, 4,729.14 and 1,073.18 is: 1,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.12 : 4,729.14 = 1,073.18 : x
  2. Step 2: Convert to fraction form
    3,155.12/4,729.14 = 1,073.18/x
  3. Step 3: Cross multiply
    3,155.12x = 4,729.14 × 1,073.18
  4. Step 4: Simplify right side
    3,155.12x = 5,075,218.47
  5. Step 5: Solve for x
    x = 5,075,218.47/3,155.12
  6. Step 6: Final answer
    x = 1,608.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.