Home / 2,011.74-2,776.33-1,266.18

Finding the Fourth Proportional to 2,011.74, 2,776.33 and 1,266.18

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Solution

The fourth proportional to 2,011.74, 2,776.33 and 1,266.18 is: 1,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.74 : 2,776.33 = 1,266.18 : x
  2. Step 2: Convert to fraction form
    2,011.74/2,776.33 = 1,266.18/x
  3. Step 3: Cross multiply
    2,011.74x = 2,776.33 × 1,266.18
  4. Step 4: Simplify right side
    2,011.74x = 3,515,333.19
  5. Step 5: Solve for x
    x = 3,515,333.19/2,011.74
  6. Step 6: Final answer
    x = 1,747.41

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Half scale
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Find fourth proportional to 2,012.74, 2,777.71 and 1,267.18
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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.