Home / 3,137.60-4,706.40-1,821.35

Finding the Fourth Proportional to 3,137.60, 4,706.40 and 1,821.35

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Solution

The fourth proportional to 3,137.60, 4,706.40 and 1,821.35 is: 2,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.60 : 4,706.40 = 1,821.35 : x
  2. Step 2: Convert to fraction form
    3,137.60/4,706.40 = 1,821.35/x
  3. Step 3: Cross multiply
    3,137.60x = 4,706.40 × 1,821.35
  4. Step 4: Simplify right side
    3,137.60x = 8,572,001.64
  5. Step 5: Solve for x
    x = 8,572,001.64/3,137.60
  6. Step 6: Final answer
    x = 2,732.03

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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.