Home / 4,985.21-6,880.07-3,724.07

Finding the Fourth Proportional to 4,985.21, 6,880.07 and 3,724.07

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Solution

The fourth proportional to 4,985.21, 6,880.07 and 3,724.07 is: 5,139.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.21 : 6,880.07 = 3,724.07 : x
  2. Step 2: Convert to fraction form
    4,985.21/6,880.07 = 3,724.07/x
  3. Step 3: Cross multiply
    4,985.21x = 6,880.07 × 3,724.07
  4. Step 4: Simplify right side
    4,985.21x = 25,621,901.70
  5. Step 5: Solve for x
    x = 25,621,901.70/4,985.21
  6. Step 6: Final answer
    x = 5,139.58

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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.