Home / 2,100.16-3,149.58-694.26

Finding the Fourth Proportional to 2,100.16, 3,149.58 and 694.26

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Solution

The fourth proportional to 2,100.16, 3,149.58 and 694.26 is: 1,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.16 : 3,149.58 = 694.26 : x
  2. Step 2: Convert to fraction form
    2,100.16/3,149.58 = 694.26/x
  3. Step 3: Cross multiply
    2,100.16x = 3,149.58 × 694.26
  4. Step 4: Simplify right side
    2,100.16x = 2,186,623.94
  5. Step 5: Solve for x
    x = 2,186,623.94/2,100.16
  6. Step 6: Final answer
    x = 1,041.17

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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.