Home / 3,187.88-4,779.96-1,455.56

Finding the Fourth Proportional to 3,187.88, 4,779.96 and 1,455.56

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Solution

The fourth proportional to 3,187.88, 4,779.96 and 1,455.56 is: 2,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.88 : 4,779.96 = 1,455.56 : x
  2. Step 2: Convert to fraction form
    3,187.88/4,779.96 = 1,455.56/x
  3. Step 3: Cross multiply
    3,187.88x = 4,779.96 × 1,455.56
  4. Step 4: Simplify right side
    3,187.88x = 6,957,518.58
  5. Step 5: Solve for x
    x = 6,957,518.58/3,187.88
  6. Step 6: Final answer
    x = 2,182.49

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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.