Home / 3,860.55-5,762.85-3,393.45

Finding the Fourth Proportional to 3,860.55, 5,762.85 and 3,393.45

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Solution

The fourth proportional to 3,860.55, 5,762.85 and 3,393.45 is: 5,065.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.55 : 5,762.85 = 3,393.45 : x
  2. Step 2: Convert to fraction form
    3,860.55/5,762.85 = 3,393.45/x
  3. Step 3: Cross multiply
    3,860.55x = 5,762.85 × 3,393.45
  4. Step 4: Simplify right side
    3,860.55x = 19,555,943.33
  5. Step 5: Solve for x
    x = 19,555,943.33/3,860.55
  6. Step 6: Final answer
    x = 5,065.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.