Home / 4,913.19-6,779.61-2,788.56

Finding the Fourth Proportional to 4,913.19, 6,779.61 and 2,788.56

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Solution

The fourth proportional to 4,913.19, 6,779.61 and 2,788.56 is: 3,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.19 : 6,779.61 = 2,788.56 : x
  2. Step 2: Convert to fraction form
    4,913.19/6,779.61 = 2,788.56/x
  3. Step 3: Cross multiply
    4,913.19x = 6,779.61 × 2,788.56
  4. Step 4: Simplify right side
    4,913.19x = 18,905,349.26
  5. Step 5: Solve for x
    x = 18,905,349.26/4,913.19
  6. Step 6: Final answer
    x = 3,847.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.