Home / 5,777.02-8,660.34-2,078.38

Finding the Fourth Proportional to 5,777.02, 8,660.34 and 2,078.38

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Solution

The fourth proportional to 5,777.02, 8,660.34 and 2,078.38 is: 3,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.02 : 8,660.34 = 2,078.38 : x
  2. Step 2: Convert to fraction form
    5,777.02/8,660.34 = 2,078.38/x
  3. Step 3: Cross multiply
    5,777.02x = 8,660.34 × 2,078.38
  4. Step 4: Simplify right side
    5,777.02x = 17,999,477.45
  5. Step 5: Solve for x
    x = 17,999,477.45/5,777.02
  6. Step 6: Final answer
    x = 3,115.70

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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.