Home / 2,789.41-3,849.10-1,670.32

Finding the Fourth Proportional to 2,789.41, 3,849.10 and 1,670.32

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Solution

The fourth proportional to 2,789.41, 3,849.10 and 1,670.32 is: 2,304.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.41 : 3,849.10 = 1,670.32 : x
  2. Step 2: Convert to fraction form
    2,789.41/3,849.10 = 1,670.32/x
  3. Step 3: Cross multiply
    2,789.41x = 3,849.10 × 1,670.32
  4. Step 4: Simplify right side
    2,789.41x = 6,429,228.71
  5. Step 5: Solve for x
    x = 6,429,228.71/2,789.41
  6. Step 6: Final answer
    x = 2,304.87

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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.