Home / 2,114.70-3,172.05-1,826.70

Finding the Fourth Proportional to 2,114.70, 3,172.05 and 1,826.70

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Solution

The fourth proportional to 2,114.70, 3,172.05 and 1,826.70 is: 2,740.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.70 : 3,172.05 = 1,826.70 : x
  2. Step 2: Convert to fraction form
    2,114.70/3,172.05 = 1,826.70/x
  3. Step 3: Cross multiply
    2,114.70x = 3,172.05 × 1,826.70
  4. Step 4: Simplify right side
    2,114.70x = 5,794,383.74
  5. Step 5: Solve for x
    x = 5,794,383.74/2,114.70
  6. Step 6: Final answer
    x = 2,740.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.