Home / 2,011.69-2,777.93-1,266.90

Finding the Fourth Proportional to 2,011.69, 2,777.93 and 1,266.90

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Solution

The fourth proportional to 2,011.69, 2,777.93 and 1,266.90 is: 1,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.69 : 2,777.93 = 1,266.90 : x
  2. Step 2: Convert to fraction form
    2,011.69/2,777.93 = 1,266.90/x
  3. Step 3: Cross multiply
    2,011.69x = 2,777.93 × 1,266.90
  4. Step 4: Simplify right side
    2,011.69x = 3,519,359.52
  5. Step 5: Solve for x
    x = 3,519,359.52/2,011.69
  6. Step 6: Final answer
    x = 1,749.45

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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.