Home / 3,579.00-4,939.05-1,985.68

Finding the Fourth Proportional to 3,579.00, 4,939.05 and 1,985.68

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Solution

The fourth proportional to 3,579.00, 4,939.05 and 1,985.68 is: 2,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.00 : 4,939.05 = 1,985.68 : x
  2. Step 2: Convert to fraction form
    3,579.00/4,939.05 = 1,985.68/x
  3. Step 3: Cross multiply
    3,579.00x = 4,939.05 × 1,985.68
  4. Step 4: Simplify right side
    3,579.00x = 9,807,360.46
  5. Step 5: Solve for x
    x = 9,807,360.46/3,579.00
  6. Step 6: Final answer
    x = 2,740.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.