Home / 2,820.95-4,232.42-1,260.81

Finding the Fourth Proportional to 2,820.95, 4,232.42 and 1,260.81

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Solution

The fourth proportional to 2,820.95, 4,232.42 and 1,260.81 is: 1,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.95 : 4,232.42 = 1,260.81 : x
  2. Step 2: Convert to fraction form
    2,820.95/4,232.42 = 1,260.81/x
  3. Step 3: Cross multiply
    2,820.95x = 4,232.42 × 1,260.81
  4. Step 4: Simplify right side
    2,820.95x = 5,336,271.16
  5. Step 5: Solve for x
    x = 5,336,271.16/2,820.95
  6. Step 6: Final answer
    x = 1,891.66

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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.