Home / 2,776.58-4,135.40-2,763.17

Finding the Fourth Proportional to 2,776.58, 4,135.40 and 2,763.17

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Solution

The fourth proportional to 2,776.58, 4,135.40 and 2,763.17 is: 4,115.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.58 : 4,135.40 = 2,763.17 : x
  2. Step 2: Convert to fraction form
    2,776.58/4,135.40 = 2,763.17/x
  3. Step 3: Cross multiply
    2,776.58x = 4,135.40 × 2,763.17
  4. Step 4: Simplify right side
    2,776.58x = 11,426,813.22
  5. Step 5: Solve for x
    x = 11,426,813.22/2,776.58
  6. Step 6: Final answer
    x = 4,115.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.