Home / 2,775.77-3,830.61-1,656.49

Finding the Fourth Proportional to 2,775.77, 3,830.61 and 1,656.49

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Solution

The fourth proportional to 2,775.77, 3,830.61 and 1,656.49 is: 2,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.77 : 3,830.61 = 1,656.49 : x
  2. Step 2: Convert to fraction form
    2,775.77/3,830.61 = 1,656.49/x
  3. Step 3: Cross multiply
    2,775.77x = 3,830.61 × 1,656.49
  4. Step 4: Simplify right side
    2,775.77x = 6,345,361.66
  5. Step 5: Solve for x
    x = 6,345,361.66/2,775.77
  6. Step 6: Final answer
    x = 2,285.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.