Home / 3,005.80-4,145.28-1,886.44

Finding the Fourth Proportional to 3,005.80, 4,145.28 and 1,886.44

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Solution

The fourth proportional to 3,005.80, 4,145.28 and 1,886.44 is: 2,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.80 : 4,145.28 = 1,886.44 : x
  2. Step 2: Convert to fraction form
    3,005.80/4,145.28 = 1,886.44/x
  3. Step 3: Cross multiply
    3,005.80x = 4,145.28 × 1,886.44
  4. Step 4: Simplify right side
    3,005.80x = 7,819,822.00
  5. Step 5: Solve for x
    x = 7,819,822.00/3,005.80
  6. Step 6: Final answer
    x = 2,601.58

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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.