Home / 3,090.31-4,631.04-2,923.99

Finding the Fourth Proportional to 3,090.31, 4,631.04 and 2,923.99

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Solution

The fourth proportional to 3,090.31, 4,631.04 and 2,923.99 is: 4,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.31 : 4,631.04 = 2,923.99 : x
  2. Step 2: Convert to fraction form
    3,090.31/4,631.04 = 2,923.99/x
  3. Step 3: Cross multiply
    3,090.31x = 4,631.04 × 2,923.99
  4. Step 4: Simplify right side
    3,090.31x = 13,541,114.65
  5. Step 5: Solve for x
    x = 13,541,114.65/3,090.31
  6. Step 6: Final answer
    x = 4,381.80

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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.