Home / 2,170.83-2,996.66-1,385.34

Finding the Fourth Proportional to 2,170.83, 2,996.66 and 1,385.34

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Solution

The fourth proportional to 2,170.83, 2,996.66 and 1,385.34 is: 1,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.83 : 2,996.66 = 1,385.34 : x
  2. Step 2: Convert to fraction form
    2,170.83/2,996.66 = 1,385.34/x
  3. Step 3: Cross multiply
    2,170.83x = 2,996.66 × 1,385.34
  4. Step 4: Simplify right side
    2,170.83x = 4,151,385.19
  5. Step 5: Solve for x
    x = 4,151,385.19/2,170.83
  6. Step 6: Final answer
    x = 1,912.35

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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.