Home / 3,137.35-4,705.88-1,288.01

Finding the Fourth Proportional to 3,137.35, 4,705.88 and 1,288.01

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Solution

The fourth proportional to 3,137.35, 4,705.88 and 1,288.01 is: 1,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.35 : 4,705.88 = 1,288.01 : x
  2. Step 2: Convert to fraction form
    3,137.35/4,705.88 = 1,288.01/x
  3. Step 3: Cross multiply
    3,137.35x = 4,705.88 × 1,288.01
  4. Step 4: Simplify right side
    3,137.35x = 6,061,220.50
  5. Step 5: Solve for x
    x = 6,061,220.50/3,137.35
  6. Step 6: Final answer
    x = 1,931.96

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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.