Home / 3,005.74-4,147.32-1,679.24

Finding the Fourth Proportional to 3,005.74, 4,147.32 and 1,679.24

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Solution

The fourth proportional to 3,005.74, 4,147.32 and 1,679.24 is: 2,317.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.74 : 4,147.32 = 1,679.24 : x
  2. Step 2: Convert to fraction form
    3,005.74/4,147.32 = 1,679.24/x
  3. Step 3: Cross multiply
    3,005.74x = 4,147.32 × 1,679.24
  4. Step 4: Simplify right side
    3,005.74x = 6,964,345.64
  5. Step 5: Solve for x
    x = 6,964,345.64/3,005.74
  6. Step 6: Final answer
    x = 2,317.02

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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.