Home / 3,090.70-4,637.24-1,858.99

Finding the Fourth Proportional to 3,090.70, 4,637.24 and 1,858.99

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Solution

The fourth proportional to 3,090.70, 4,637.24 and 1,858.99 is: 2,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.70 : 4,637.24 = 1,858.99 : x
  2. Step 2: Convert to fraction form
    3,090.70/4,637.24 = 1,858.99/x
  3. Step 3: Cross multiply
    3,090.70x = 4,637.24 × 1,858.99
  4. Step 4: Simplify right side
    3,090.70x = 8,620,582.79
  5. Step 5: Solve for x
    x = 8,620,582.79/3,090.70
  6. Step 6: Final answer
    x = 2,789.20

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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.