Home / 2,648.93-3,974.60-2,605.19

Finding the Fourth Proportional to 2,648.93, 3,974.60 and 2,605.19

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Solution

The fourth proportional to 2,648.93, 3,974.60 and 2,605.19 is: 3,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.93 : 3,974.60 = 2,605.19 : x
  2. Step 2: Convert to fraction form
    2,648.93/3,974.60 = 2,605.19/x
  3. Step 3: Cross multiply
    2,648.93x = 3,974.60 × 2,605.19
  4. Step 4: Simplify right side
    2,648.93x = 10,354,574.81
  5. Step 5: Solve for x
    x = 10,354,574.81/2,648.93
  6. Step 6: Final answer
    x = 3,908.97

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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.