Home / 3,701.80-5,554.32-1,970

Finding the Fourth Proportional to 3,701.80, 5,554.32 and 1,970

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Solution

The fourth proportional to 3,701.80, 5,554.32 and 1,970 is: 2,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.80 : 5,554.32 = 1,970 : x
  2. Step 2: Convert to fraction form
    3,701.80/5,554.32 = 1,970/x
  3. Step 3: Cross multiply
    3,701.80x = 5,554.32 × 1,970
  4. Step 4: Simplify right side
    3,701.80x = 10,942,010.40
  5. Step 5: Solve for x
    x = 10,942,010.40/3,701.80
  6. Step 6: Final answer
    x = 2,955.86

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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.