Home / 2,820.23-4,230.75-1,065.89

Finding the Fourth Proportional to 2,820.23, 4,230.75 and 1,065.89

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Solution

The fourth proportional to 2,820.23, 4,230.75 and 1,065.89 is: 1,598.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.23 : 4,230.75 = 1,065.89 : x
  2. Step 2: Convert to fraction form
    2,820.23/4,230.75 = 1,065.89/x
  3. Step 3: Cross multiply
    2,820.23x = 4,230.75 × 1,065.89
  4. Step 4: Simplify right side
    2,820.23x = 4,509,514.12
  5. Step 5: Solve for x
    x = 4,509,514.12/2,820.23
  6. Step 6: Final answer
    x = 1,598.99

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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.