Home / 2,820.83-4,230.74-1,065.99

Finding the Fourth Proportional to 2,820.83, 4,230.74 and 1,065.99

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Solution

The fourth proportional to 2,820.83, 4,230.74 and 1,065.99 is: 1,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.83 : 4,230.74 = 1,065.99 : x
  2. Step 2: Convert to fraction form
    2,820.83/4,230.74 = 1,065.99/x
  3. Step 3: Cross multiply
    2,820.83x = 4,230.74 × 1,065.99
  4. Step 4: Simplify right side
    2,820.83x = 4,509,921.20
  5. Step 5: Solve for x
    x = 4,509,921.20/2,820.83
  6. Step 6: Final answer
    x = 1,598.80

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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.