Home / 3,420-4,719.96-2,094.59

Finding the Fourth Proportional to 3,420, 4,719.96 and 2,094.59

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Solution

The fourth proportional to 3,420, 4,719.96 and 2,094.59 is: 2,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420 : 4,719.96 = 2,094.59 : x
  2. Step 2: Convert to fraction form
    3,420/4,719.96 = 2,094.59/x
  3. Step 3: Cross multiply
    3,420x = 4,719.96 × 2,094.59
  4. Step 4: Simplify right side
    3,420x = 9,886,381.02
  5. Step 5: Solve for x
    x = 9,886,381.02/3,420
  6. Step 6: Final answer
    x = 2,890.75

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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.