Home / 2,990.70-4,483.22-1,042.38

Finding the Fourth Proportional to 2,990.70, 4,483.22 and 1,042.38

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Solution

The fourth proportional to 2,990.70, 4,483.22 and 1,042.38 is: 1,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.70 : 4,483.22 = 1,042.38 : x
  2. Step 2: Convert to fraction form
    2,990.70/4,483.22 = 1,042.38/x
  3. Step 3: Cross multiply
    2,990.70x = 4,483.22 × 1,042.38
  4. Step 4: Simplify right side
    2,990.70x = 4,673,213.65
  5. Step 5: Solve for x
    x = 4,673,213.65/2,990.70
  6. Step 6: Final answer
    x = 1,562.58

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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.