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Finding the Fourth Proportional to 2,779.80, 4,174.02 and 1,483.80

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Solution

The fourth proportional to 2,779.80, 4,174.02 and 1,483.80 is: 2,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.80 : 4,174.02 = 1,483.80 : x
  2. Step 2: Convert to fraction form
    2,779.80/4,174.02 = 1,483.80/x
  3. Step 3: Cross multiply
    2,779.80x = 4,174.02 × 1,483.80
  4. Step 4: Simplify right side
    2,779.80x = 6,193,410.88
  5. Step 5: Solve for x
    x = 6,193,410.88/2,779.80
  6. Step 6: Final answer
    x = 2,228.01

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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.