Home / 5,166.96-7,751.40-2,391.80

Finding the Fourth Proportional to 5,166.96, 7,751.40 and 2,391.80

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Solution

The fourth proportional to 5,166.96, 7,751.40 and 2,391.80 is: 3,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.96 : 7,751.40 = 2,391.80 : x
  2. Step 2: Convert to fraction form
    5,166.96/7,751.40 = 2,391.80/x
  3. Step 3: Cross multiply
    5,166.96x = 7,751.40 × 2,391.80
  4. Step 4: Simplify right side
    5,166.96x = 18,539,750.79
  5. Step 5: Solve for x
    x = 18,539,750.79/5,166.96
  6. Step 6: Final answer
    x = 3,588.14

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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.