Home / 2,170.69-2,993.21-2,125.13

Finding the Fourth Proportional to 2,170.69, 2,993.21 and 2,125.13

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Solution

The fourth proportional to 2,170.69, 2,993.21 and 2,125.13 is: 2,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.69 : 2,993.21 = 2,125.13 : x
  2. Step 2: Convert to fraction form
    2,170.69/2,993.21 = 2,125.13/x
  3. Step 3: Cross multiply
    2,170.69x = 2,993.21 × 2,125.13
  4. Step 4: Simplify right side
    2,170.69x = 6,360,945.40
  5. Step 5: Solve for x
    x = 6,360,945.40/2,170.69
  6. Step 6: Final answer
    x = 2,930.39

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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.