Home / 3,572.07-4,928.66-2,155.99

Finding the Fourth Proportional to 3,572.07, 4,928.66 and 2,155.99

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Solution

The fourth proportional to 3,572.07, 4,928.66 and 2,155.99 is: 2,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.07 : 4,928.66 = 2,155.99 : x
  2. Step 2: Convert to fraction form
    3,572.07/4,928.66 = 2,155.99/x
  3. Step 3: Cross multiply
    3,572.07x = 4,928.66 × 2,155.99
  4. Step 4: Simplify right side
    3,572.07x = 10,626,141.67
  5. Step 5: Solve for x
    x = 10,626,141.67/3,572.07
  6. Step 6: Final answer
    x = 2,974.79

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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.