Home / 2,670.77-3,685.73-1,491.91

Finding the Fourth Proportional to 2,670.77, 3,685.73 and 1,491.91

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Solution

The fourth proportional to 2,670.77, 3,685.73 and 1,491.91 is: 2,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.77 : 3,685.73 = 1,491.91 : x
  2. Step 2: Convert to fraction form
    2,670.77/3,685.73 = 1,491.91/x
  3. Step 3: Cross multiply
    2,670.77x = 3,685.73 × 1,491.91
  4. Step 4: Simplify right side
    2,670.77x = 5,498,777.44
  5. Step 5: Solve for x
    x = 5,498,777.44/2,670.77
  6. Step 6: Final answer
    x = 2,058.87

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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.