Home / 2,012.67-2,776.95-1,226.70

Finding the Fourth Proportional to 2,012.67, 2,776.95 and 1,226.70

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Solution

The fourth proportional to 2,012.67, 2,776.95 and 1,226.70 is: 1,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.67 : 2,776.95 = 1,226.70 : x
  2. Step 2: Convert to fraction form
    2,012.67/2,776.95 = 1,226.70/x
  3. Step 3: Cross multiply
    2,012.67x = 2,776.95 × 1,226.70
  4. Step 4: Simplify right side
    2,012.67x = 3,406,484.57
  5. Step 5: Solve for x
    x = 3,406,484.57/2,012.67
  6. Step 6: Final answer
    x = 1,692.52

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1.5x scale

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.