Home / 3,135.28-4,702.88-1,054.88

Finding the Fourth Proportional to 3,135.28, 4,702.88 and 1,054.88

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Solution

The fourth proportional to 3,135.28, 4,702.88 and 1,054.88 is: 1,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.28 : 4,702.88 = 1,054.88 : x
  2. Step 2: Convert to fraction form
    3,135.28/4,702.88 = 1,054.88/x
  3. Step 3: Cross multiply
    3,135.28x = 4,702.88 × 1,054.88
  4. Step 4: Simplify right side
    3,135.28x = 4,960,974.05
  5. Step 5: Solve for x
    x = 4,960,974.05/3,135.28
  6. Step 6: Final answer
    x = 1,582.31

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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.