Home / 2,012.72-2,777.91-1,349.66

Finding the Fourth Proportional to 2,012.72, 2,777.91 and 1,349.66

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Solution

The fourth proportional to 2,012.72, 2,777.91 and 1,349.66 is: 1,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.72 : 2,777.91 = 1,349.66 : x
  2. Step 2: Convert to fraction form
    2,012.72/2,777.91 = 1,349.66/x
  3. Step 3: Cross multiply
    2,012.72x = 2,777.91 × 1,349.66
  4. Step 4: Simplify right side
    2,012.72x = 3,749,234.01
  5. Step 5: Solve for x
    x = 3,749,234.01/2,012.72
  6. Step 6: Final answer
    x = 1,862.77

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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.