Home / 3,137.42-4,705.34-1,289.05

Finding the Fourth Proportional to 3,137.42, 4,705.34 and 1,289.05

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Solution

The fourth proportional to 3,137.42, 4,705.34 and 1,289.05 is: 1,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.42 : 4,705.34 = 1,289.05 : x
  2. Step 2: Convert to fraction form
    3,137.42/4,705.34 = 1,289.05/x
  3. Step 3: Cross multiply
    3,137.42x = 4,705.34 × 1,289.05
  4. Step 4: Simplify right side
    3,137.42x = 6,065,412.40
  5. Step 5: Solve for x
    x = 6,065,412.40/3,137.42
  6. Step 6: Final answer
    x = 1,933.25

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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.