Home / 4,855.44-6,688.80-3,860.40

Finding the Fourth Proportional to 4,855.44, 6,688.80 and 3,860.40

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Solution

The fourth proportional to 4,855.44, 6,688.80 and 3,860.40 is: 5,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.44 : 6,688.80 = 3,860.40 : x
  2. Step 2: Convert to fraction form
    4,855.44/6,688.80 = 3,860.40/x
  3. Step 3: Cross multiply
    4,855.44x = 6,688.80 × 3,860.40
  4. Step 4: Simplify right side
    4,855.44x = 25,821,443.52
  5. Step 5: Solve for x
    x = 25,821,443.52/4,855.44
  6. Step 6: Final answer
    x = 5,318.04

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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.