Home / 3,462.12-4,778.40-2,137.08

Finding the Fourth Proportional to 3,462.12, 4,778.40 and 2,137.08

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Solution

The fourth proportional to 3,462.12, 4,778.40 and 2,137.08 is: 2,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.12 : 4,778.40 = 2,137.08 : x
  2. Step 2: Convert to fraction form
    3,462.12/4,778.40 = 2,137.08/x
  3. Step 3: Cross multiply
    3,462.12x = 4,778.40 × 2,137.08
  4. Step 4: Simplify right side
    3,462.12x = 10,211,823.07
  5. Step 5: Solve for x
    x = 10,211,823.07/3,462.12
  6. Step 6: Final answer
    x = 2,949.59

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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.