Home / 2,992.20-4,126.14-2,106.60

Finding the Fourth Proportional to 2,992.20, 4,126.14 and 2,106.60

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Solution

The fourth proportional to 2,992.20, 4,126.14 and 2,106.60 is: 2,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.20 : 4,126.14 = 2,106.60 : x
  2. Step 2: Convert to fraction form
    2,992.20/4,126.14 = 2,106.60/x
  3. Step 3: Cross multiply
    2,992.20x = 4,126.14 × 2,106.60
  4. Step 4: Simplify right side
    2,992.20x = 8,692,126.52
  5. Step 5: Solve for x
    x = 8,692,126.52/2,992.20
  6. Step 6: Final answer
    x = 2,904.93

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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.