Home / 5,155.93-7,723.58-2,378.80

Finding the Fourth Proportional to 5,155.93, 7,723.58 and 2,378.80

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Solution

The fourth proportional to 5,155.93, 7,723.58 and 2,378.80 is: 3,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.93 : 7,723.58 = 2,378.80 : x
  2. Step 2: Convert to fraction form
    5,155.93/7,723.58 = 2,378.80/x
  3. Step 3: Cross multiply
    5,155.93x = 7,723.58 × 2,378.80
  4. Step 4: Simplify right side
    5,155.93x = 18,372,852.10
  5. Step 5: Solve for x
    x = 18,372,852.10/5,155.93
  6. Step 6: Final answer
    x = 3,563.44

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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.