Home / 4,686.57-7,028.16-1,911.77

Finding the Fourth Proportional to 4,686.57, 7,028.16 and 1,911.77

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Solution

The fourth proportional to 4,686.57, 7,028.16 and 1,911.77 is: 2,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,686.57 : 7,028.16 = 1,911.77 : x
  2. Step 2: Convert to fraction form
    4,686.57/7,028.16 = 1,911.77/x
  3. Step 3: Cross multiply
    4,686.57x = 7,028.16 × 1,911.77
  4. Step 4: Simplify right side
    4,686.57x = 13,436,225.44
  5. Step 5: Solve for x
    x = 13,436,225.44/4,686.57
  6. Step 6: Final answer
    x = 2,866.96

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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.