Home / 5,190.69-7,790.67-2,418.93

Finding the Fourth Proportional to 5,190.69, 7,790.67 and 2,418.93

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Solution

The fourth proportional to 5,190.69, 7,790.67 and 2,418.93 is: 3,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.69 : 7,790.67 = 2,418.93 : x
  2. Step 2: Convert to fraction form
    5,190.69/7,790.67 = 2,418.93/x
  3. Step 3: Cross multiply
    5,190.69x = 7,790.67 × 2,418.93
  4. Step 4: Simplify right side
    5,190.69x = 18,845,085.38
  5. Step 5: Solve for x
    x = 18,845,085.38/5,190.69
  6. Step 6: Final answer
    x = 3,630.55

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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.