Home / 4,078.40-6,078.80-4,071.84

Finding the Fourth Proportional to 4,078.40, 6,078.80 and 4,071.84

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Solution

The fourth proportional to 4,078.40, 6,078.80 and 4,071.84 is: 6,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.40 : 6,078.80 = 4,071.84 : x
  2. Step 2: Convert to fraction form
    4,078.40/6,078.80 = 4,071.84/x
  3. Step 3: Cross multiply
    4,078.40x = 6,078.80 × 4,071.84
  4. Step 4: Simplify right side
    4,078.40x = 24,751,900.99
  5. Step 5: Solve for x
    x = 24,751,900.99/4,078.40
  6. Step 6: Final answer
    x = 6,069.02

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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.