Home / 4,291.02-6,420.01-3,979.98

Finding the Fourth Proportional to 4,291.02, 6,420.01 and 3,979.98

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Solution

The fourth proportional to 4,291.02, 6,420.01 and 3,979.98 is: 5,954.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.02 : 6,420.01 = 3,979.98 : x
  2. Step 2: Convert to fraction form
    4,291.02/6,420.01 = 3,979.98/x
  3. Step 3: Cross multiply
    4,291.02x = 6,420.01 × 3,979.98
  4. Step 4: Simplify right side
    4,291.02x = 25,551,511.40
  5. Step 5: Solve for x
    x = 25,551,511.40/4,291.02
  6. Step 6: Final answer
    x = 5,954.65

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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.