Home / 4,920.98-7,377.33-2,145.54

Finding the Fourth Proportional to 4,920.98, 7,377.33 and 2,145.54

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Solution

The fourth proportional to 4,920.98, 7,377.33 and 2,145.54 is: 3,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.98 : 7,377.33 = 2,145.54 : x
  2. Step 2: Convert to fraction form
    4,920.98/7,377.33 = 2,145.54/x
  3. Step 3: Cross multiply
    4,920.98x = 7,377.33 × 2,145.54
  4. Step 4: Simplify right side
    4,920.98x = 15,828,338.75
  5. Step 5: Solve for x
    x = 15,828,338.75/4,920.98
  6. Step 6: Final answer
    x = 3,216.50

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1.5x scale

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.