Home / 3,860.80-5,795.04-2,130.24

Finding the Fourth Proportional to 3,860.80, 5,795.04 and 2,130.24

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Solution

The fourth proportional to 3,860.80, 5,795.04 and 2,130.24 is: 3,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.80 : 5,795.04 = 2,130.24 : x
  2. Step 2: Convert to fraction form
    3,860.80/5,795.04 = 2,130.24/x
  3. Step 3: Cross multiply
    3,860.80x = 5,795.04 × 2,130.24
  4. Step 4: Simplify right side
    3,860.80x = 12,344,826.01
  5. Step 5: Solve for x
    x = 12,344,826.01/3,860.80
  6. Step 6: Final answer
    x = 3,197.48

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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.