Home / 2,990.62-4,485.96-1,042.82

Finding the Fourth Proportional to 2,990.62, 4,485.96 and 1,042.82

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Solution

The fourth proportional to 2,990.62, 4,485.96 and 1,042.82 is: 1,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.62 : 4,485.96 = 1,042.82 : x
  2. Step 2: Convert to fraction form
    2,990.62/4,485.96 = 1,042.82/x
  3. Step 3: Cross multiply
    2,990.62x = 4,485.96 × 1,042.82
  4. Step 4: Simplify right side
    2,990.62x = 4,678,048.81
  5. Step 5: Solve for x
    x = 4,678,048.81/2,990.62
  6. Step 6: Final answer
    x = 1,564.24

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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.