Home / 2,680.14-4,018.77-948.54

Finding the Fourth Proportional to 2,680.14, 4,018.77 and 948.54

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Solution

The fourth proportional to 2,680.14, 4,018.77 and 948.54 is: 1,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.14 : 4,018.77 = 948.54 : x
  2. Step 2: Convert to fraction form
    2,680.14/4,018.77 = 948.54/x
  3. Step 3: Cross multiply
    2,680.14x = 4,018.77 × 948.54
  4. Step 4: Simplify right side
    2,680.14x = 3,811,964.10
  5. Step 5: Solve for x
    x = 3,811,964.10/2,680.14
  6. Step 6: Final answer
    x = 1,422.30

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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.