Home / 2,830.92-4,245.00-1,187.02

Finding the Fourth Proportional to 2,830.92, 4,245.00 and 1,187.02

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Solution

The fourth proportional to 2,830.92, 4,245.00 and 1,187.02 is: 1,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.92 : 4,245.00 = 1,187.02 : x
  2. Step 2: Convert to fraction form
    2,830.92/4,245.00 = 1,187.02/x
  3. Step 3: Cross multiply
    2,830.92x = 4,245.00 × 1,187.02
  4. Step 4: Simplify right side
    2,830.92x = 5,038,909.66
  5. Step 5: Solve for x
    x = 5,038,909.66/2,830.92
  6. Step 6: Final answer
    x = 1,779.96

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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.