Home / 3,135.14-4,702.88-1,055.21

Finding the Fourth Proportional to 3,135.14, 4,702.88 and 1,055.21

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Solution

The fourth proportional to 3,135.14, 4,702.88 and 1,055.21 is: 1,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.14 : 4,702.88 = 1,055.21 : x
  2. Step 2: Convert to fraction form
    3,135.14/4,702.88 = 1,055.21/x
  3. Step 3: Cross multiply
    3,135.14x = 4,702.88 × 1,055.21
  4. Step 4: Simplify right side
    3,135.14x = 4,962,525.65
  5. Step 5: Solve for x
    x = 4,962,525.65/3,135.14
  6. Step 6: Final answer
    x = 1,582.87

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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.