Home / 2,788.60-4,182.90-1,693.30

Finding the Fourth Proportional to 2,788.60, 4,182.90 and 1,693.30

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Solution

The fourth proportional to 2,788.60, 4,182.90 and 1,693.30 is: 2,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.60 : 4,182.90 = 1,693.30 : x
  2. Step 2: Convert to fraction form
    2,788.60/4,182.90 = 1,693.30/x
  3. Step 3: Cross multiply
    2,788.60x = 4,182.90 × 1,693.30
  4. Step 4: Simplify right side
    2,788.60x = 7,082,904.57
  5. Step 5: Solve for x
    x = 7,082,904.57/2,788.60
  6. Step 6: Final answer
    x = 2,539.95

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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.