Home / 2,974.95-4,105.35-1,648.62

Finding the Fourth Proportional to 2,974.95, 4,105.35 and 1,648.62

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Solution

The fourth proportional to 2,974.95, 4,105.35 and 1,648.62 is: 2,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.95 : 4,105.35 = 1,648.62 : x
  2. Step 2: Convert to fraction form
    2,974.95/4,105.35 = 1,648.62/x
  3. Step 3: Cross multiply
    2,974.95x = 4,105.35 × 1,648.62
  4. Step 4: Simplify right side
    2,974.95x = 6,768,162.12
  5. Step 5: Solve for x
    x = 6,768,162.12/2,974.95
  6. Step 6: Final answer
    x = 2,275.05

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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.