Home / 2,161.46-2,982.66-1,277.03

Finding the Fourth Proportional to 2,161.46, 2,982.66 and 1,277.03

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Solution

The fourth proportional to 2,161.46, 2,982.66 and 1,277.03 is: 1,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.46 : 2,982.66 = 1,277.03 : x
  2. Step 2: Convert to fraction form
    2,161.46/2,982.66 = 1,277.03/x
  3. Step 3: Cross multiply
    2,161.46x = 2,982.66 × 1,277.03
  4. Step 4: Simplify right side
    2,161.46x = 3,808,946.30
  5. Step 5: Solve for x
    x = 3,808,946.30/2,161.46
  6. Step 6: Final answer
    x = 1,762.21

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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.