Home / 2,130.08-3,194.07-1,089.89

Finding the Fourth Proportional to 2,130.08, 3,194.07 and 1,089.89

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Solution

The fourth proportional to 2,130.08, 3,194.07 and 1,089.89 is: 1,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.08 : 3,194.07 = 1,089.89 : x
  2. Step 2: Convert to fraction form
    2,130.08/3,194.07 = 1,089.89/x
  3. Step 3: Cross multiply
    2,130.08x = 3,194.07 × 1,089.89
  4. Step 4: Simplify right side
    2,130.08x = 3,481,184.95
  5. Step 5: Solve for x
    x = 3,481,184.95/2,130.08
  6. Step 6: Final answer
    x = 1,634.30

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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.