Home / 2,193.21-3,269.70-1,945.35

Finding the Fourth Proportional to 2,193.21, 3,269.70 and 1,945.35

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Solution

The fourth proportional to 2,193.21, 3,269.70 and 1,945.35 is: 2,900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.21 : 3,269.70 = 1,945.35 : x
  2. Step 2: Convert to fraction form
    2,193.21/3,269.70 = 1,945.35/x
  3. Step 3: Cross multiply
    2,193.21x = 3,269.70 × 1,945.35
  4. Step 4: Simplify right side
    2,193.21x = 6,360,710.90
  5. Step 5: Solve for x
    x = 6,360,710.90/2,193.21
  6. Step 6: Final answer
    x = 2,900.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.