Home / 5,205.18-7,807.73-2,125.02

Finding the Fourth Proportional to 5,205.18, 7,807.73 and 2,125.02

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Solution

The fourth proportional to 5,205.18, 7,807.73 and 2,125.02 is: 3,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.18 : 7,807.73 = 2,125.02 : x
  2. Step 2: Convert to fraction form
    5,205.18/7,807.73 = 2,125.02/x
  3. Step 3: Cross multiply
    5,205.18x = 7,807.73 × 2,125.02
  4. Step 4: Simplify right side
    5,205.18x = 16,591,582.40
  5. Step 5: Solve for x
    x = 16,591,582.40/5,205.18
  6. Step 6: Final answer
    x = 3,187.51

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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.