Home / 3,852.20-5,779.74-1,386.92

Finding the Fourth Proportional to 3,852.20, 5,779.74 and 1,386.92

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Solution

The fourth proportional to 3,852.20, 5,779.74 and 1,386.92 is: 2,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.20 : 5,779.74 = 1,386.92 : x
  2. Step 2: Convert to fraction form
    3,852.20/5,779.74 = 1,386.92/x
  3. Step 3: Cross multiply
    3,852.20x = 5,779.74 × 1,386.92
  4. Step 4: Simplify right side
    3,852.20x = 8,016,037.00
  5. Step 5: Solve for x
    x = 8,016,037.00/3,852.20
  6. Step 6: Final answer
    x = 2,080.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.