Home / 3,105.65-4,658.63-1,025.84

Finding the Fourth Proportional to 3,105.65, 4,658.63 and 1,025.84

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Solution

The fourth proportional to 3,105.65, 4,658.63 and 1,025.84 is: 1,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.65 : 4,658.63 = 1,025.84 : x
  2. Step 2: Convert to fraction form
    3,105.65/4,658.63 = 1,025.84/x
  3. Step 3: Cross multiply
    3,105.65x = 4,658.63 × 1,025.84
  4. Step 4: Simplify right side
    3,105.65x = 4,778,980.58
  5. Step 5: Solve for x
    x = 4,778,980.58/3,105.65
  6. Step 6: Final answer
    x = 1,538.80

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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.