Home / 2,190.85-3,024.35-1,306.96

Finding the Fourth Proportional to 2,190.85, 3,024.35 and 1,306.96

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Solution

The fourth proportional to 2,190.85, 3,024.35 and 1,306.96 is: 1,804.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.85 : 3,024.35 = 1,306.96 : x
  2. Step 2: Convert to fraction form
    2,190.85/3,024.35 = 1,306.96/x
  3. Step 3: Cross multiply
    2,190.85x = 3,024.35 × 1,306.96
  4. Step 4: Simplify right side
    2,190.85x = 3,952,704.48
  5. Step 5: Solve for x
    x = 3,952,704.48/2,190.85
  6. Step 6: Final answer
    x = 1,804.19

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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.