Home / 2,776.55-4,166.51-1,315.85

Finding the Fourth Proportional to 2,776.55, 4,166.51 and 1,315.85

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Solution

The fourth proportional to 2,776.55, 4,166.51 and 1,315.85 is: 1,974.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.55 : 4,166.51 = 1,315.85 : x
  2. Step 2: Convert to fraction form
    2,776.55/4,166.51 = 1,315.85/x
  3. Step 3: Cross multiply
    2,776.55x = 4,166.51 × 1,315.85
  4. Step 4: Simplify right side
    2,776.55x = 5,482,474.77
  5. Step 5: Solve for x
    x = 5,482,474.77/2,776.55
  6. Step 6: Final answer
    x = 1,974.57

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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.