Home / 4,790.21-7,185.30-1,870.56

Finding the Fourth Proportional to 4,790.21, 7,185.30 and 1,870.56

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Solution

The fourth proportional to 4,790.21, 7,185.30 and 1,870.56 is: 2,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.21 : 7,185.30 = 1,870.56 : x
  2. Step 2: Convert to fraction form
    4,790.21/7,185.30 = 1,870.56/x
  3. Step 3: Cross multiply
    4,790.21x = 7,185.30 × 1,870.56
  4. Step 4: Simplify right side
    4,790.21x = 13,440,534.77
  5. Step 5: Solve for x
    x = 13,440,534.77/4,790.21
  6. Step 6: Final answer
    x = 2,805.84

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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.