Home / 3,155.21-4,733.33-1,075

Finding the Fourth Proportional to 3,155.21, 4,733.33 and 1,075

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Solution

The fourth proportional to 3,155.21, 4,733.33 and 1,075 is: 1,612.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.21 : 4,733.33 = 1,075 : x
  2. Step 2: Convert to fraction form
    3,155.21/4,733.33 = 1,075/x
  3. Step 3: Cross multiply
    3,155.21x = 4,733.33 × 1,075
  4. Step 4: Simplify right side
    3,155.21x = 5,088,329.75
  5. Step 5: Solve for x
    x = 5,088,329.75/3,155.21
  6. Step 6: Final answer
    x = 1,612.68

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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.