Home / 2,918.60-4,025.18-1,974.14

Finding the Fourth Proportional to 2,918.60, 4,025.18 and 1,974.14

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Solution

The fourth proportional to 2,918.60, 4,025.18 and 1,974.14 is: 2,722.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.60 : 4,025.18 = 1,974.14 : x
  2. Step 2: Convert to fraction form
    2,918.60/4,025.18 = 1,974.14/x
  3. Step 3: Cross multiply
    2,918.60x = 4,025.18 × 1,974.14
  4. Step 4: Simplify right side
    2,918.60x = 7,946,238.85
  5. Step 5: Solve for x
    x = 7,946,238.85/2,918.60
  6. Step 6: Final answer
    x = 2,722.62

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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.