Home / 3,135.30-4,699.40-1,284.06

Finding the Fourth Proportional to 3,135.30, 4,699.40 and 1,284.06

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Solution

The fourth proportional to 3,135.30, 4,699.40 and 1,284.06 is: 1,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.30 : 4,699.40 = 1,284.06 : x
  2. Step 2: Convert to fraction form
    3,135.30/4,699.40 = 1,284.06/x
  3. Step 3: Cross multiply
    3,135.30x = 4,699.40 × 1,284.06
  4. Step 4: Simplify right side
    3,135.30x = 6,034,311.56
  5. Step 5: Solve for x
    x = 6,034,311.56/3,135.30
  6. Step 6: Final answer
    x = 1,924.64

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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.