Home / 5,020.89-6,928.62-2,782.86

Finding the Fourth Proportional to 5,020.89, 6,928.62 and 2,782.86

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Solution

The fourth proportional to 5,020.89, 6,928.62 and 2,782.86 is: 3,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.89 : 6,928.62 = 2,782.86 : x
  2. Step 2: Convert to fraction form
    5,020.89/6,928.62 = 2,782.86/x
  3. Step 3: Cross multiply
    5,020.89x = 6,928.62 × 2,782.86
  4. Step 4: Simplify right side
    5,020.89x = 19,281,379.45
  5. Step 5: Solve for x
    x = 19,281,379.45/5,020.89
  6. Step 6: Final answer
    x = 3,840.23

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1.5x scale

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.