Home / 4,078.05-5,619.84-2,897.07

Finding the Fourth Proportional to 4,078.05, 5,619.84 and 2,897.07

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Solution

The fourth proportional to 4,078.05, 5,619.84 and 2,897.07 is: 3,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.05 : 5,619.84 = 2,897.07 : x
  2. Step 2: Convert to fraction form
    4,078.05/5,619.84 = 2,897.07/x
  3. Step 3: Cross multiply
    4,078.05x = 5,619.84 × 2,897.07
  4. Step 4: Simplify right side
    4,078.05x = 16,281,085.35
  5. Step 5: Solve for x
    x = 16,281,085.35/4,078.05
  6. Step 6: Final answer
    x = 3,992.37

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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.