Home / 2,378.10-3,583.38-1,954.74

Finding the Fourth Proportional to 2,378.10, 3,583.38 and 1,954.74

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Solution

The fourth proportional to 2,378.10, 3,583.38 and 1,954.74 is: 2,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.10 : 3,583.38 = 1,954.74 : x
  2. Step 2: Convert to fraction form
    2,378.10/3,583.38 = 1,954.74/x
  3. Step 3: Cross multiply
    2,378.10x = 3,583.38 × 1,954.74
  4. Step 4: Simplify right side
    2,378.10x = 7,004,576.22
  5. Step 5: Solve for x
    x = 7,004,576.22/2,378.10
  6. Step 6: Final answer
    x = 2,945.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.