Home / 2,179.23-3,005.80-1,549.72

Finding the Fourth Proportional to 2,179.23, 3,005.80 and 1,549.72

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Solution

The fourth proportional to 2,179.23, 3,005.80 and 1,549.72 is: 2,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.23 : 3,005.80 = 1,549.72 : x
  2. Step 2: Convert to fraction form
    2,179.23/3,005.80 = 1,549.72/x
  3. Step 3: Cross multiply
    2,179.23x = 3,005.80 × 1,549.72
  4. Step 4: Simplify right side
    2,179.23x = 4,658,148.38
  5. Step 5: Solve for x
    x = 4,658,148.38/2,179.23
  6. Step 6: Final answer
    x = 2,137.52

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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.