Home / 3,005.64-4,148.42-2,012.58

Finding the Fourth Proportional to 3,005.64, 4,148.42 and 2,012.58

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Solution

The fourth proportional to 3,005.64, 4,148.42 and 2,012.58 is: 2,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.64 : 4,148.42 = 2,012.58 : x
  2. Step 2: Convert to fraction form
    3,005.64/4,148.42 = 2,012.58/x
  3. Step 3: Cross multiply
    3,005.64x = 4,148.42 × 2,012.58
  4. Step 4: Simplify right side
    3,005.64x = 8,349,017.06
  5. Step 5: Solve for x
    x = 8,349,017.06/3,005.64
  6. Step 6: Final answer
    x = 2,777.78

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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.