Home / 3,986.60-5,501.93-3,040.65

Finding the Fourth Proportional to 3,986.60, 5,501.93 and 3,040.65

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Solution

The fourth proportional to 3,986.60, 5,501.93 and 3,040.65 is: 4,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.60 : 5,501.93 = 3,040.65 : x
  2. Step 2: Convert to fraction form
    3,986.60/5,501.93 = 3,040.65/x
  3. Step 3: Cross multiply
    3,986.60x = 5,501.93 × 3,040.65
  4. Step 4: Simplify right side
    3,986.60x = 16,729,428.25
  5. Step 5: Solve for x
    x = 16,729,428.25/3,986.60
  6. Step 6: Final answer
    x = 4,196.42

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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.