Home / 3,840.99-5,300.97-2,515.44

Finding the Fourth Proportional to 3,840.99, 5,300.97 and 2,515.44

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Solution

The fourth proportional to 3,840.99, 5,300.97 and 2,515.44 is: 3,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.99 : 5,300.97 = 2,515.44 : x
  2. Step 2: Convert to fraction form
    3,840.99/5,300.97 = 2,515.44/x
  3. Step 3: Cross multiply
    3,840.99x = 5,300.97 × 2,515.44
  4. Step 4: Simplify right side
    3,840.99x = 13,334,271.98
  5. Step 5: Solve for x
    x = 13,334,271.98/3,840.99
  6. Step 6: Final answer
    x = 3,471.57

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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.