Home / 3,137.12-4,703.88-1,188.08

Finding the Fourth Proportional to 3,137.12, 4,703.88 and 1,188.08

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Solution

The fourth proportional to 3,137.12, 4,703.88 and 1,188.08 is: 1,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.12 : 4,703.88 = 1,188.08 : x
  2. Step 2: Convert to fraction form
    3,137.12/4,703.88 = 1,188.08/x
  3. Step 3: Cross multiply
    3,137.12x = 4,703.88 × 1,188.08
  4. Step 4: Simplify right side
    3,137.12x = 5,588,585.75
  5. Step 5: Solve for x
    x = 5,588,585.75/3,137.12
  6. Step 6: Final answer
    x = 1,781.44

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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.