Home / 3,240.03-4,860.05-1,778.38

Finding the Fourth Proportional to 3,240.03, 4,860.05 and 1,778.38

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Solution

The fourth proportional to 3,240.03, 4,860.05 and 1,778.38 is: 2,667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.03 : 4,860.05 = 1,778.38 : x
  2. Step 2: Convert to fraction form
    3,240.03/4,860.05 = 1,778.38/x
  3. Step 3: Cross multiply
    3,240.03x = 4,860.05 × 1,778.38
  4. Step 4: Simplify right side
    3,240.03x = 8,643,020.16
  5. Step 5: Solve for x
    x = 8,643,020.16/3,240.03
  6. Step 6: Final answer
    x = 2,667.58

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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.