Home / 4,855.81-7,291.01-2,778.16

Finding the Fourth Proportional to 4,855.81, 7,291.01 and 2,778.16

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Solution

The fourth proportional to 4,855.81, 7,291.01 and 2,778.16 is: 4,171.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.81 : 7,291.01 = 2,778.16 : x
  2. Step 2: Convert to fraction form
    4,855.81/7,291.01 = 2,778.16/x
  3. Step 3: Cross multiply
    4,855.81x = 7,291.01 × 2,778.16
  4. Step 4: Simplify right side
    4,855.81x = 20,255,560.22
  5. Step 5: Solve for x
    x = 20,255,560.22/4,855.81
  6. Step 6: Final answer
    x = 4,171.41

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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.