Home / 2,919.56-4,374.38-1,762.88

Finding the Fourth Proportional to 2,919.56, 4,374.38 and 1,762.88

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Solution

The fourth proportional to 2,919.56, 4,374.38 and 1,762.88 is: 2,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.56 : 4,374.38 = 1,762.88 : x
  2. Step 2: Convert to fraction form
    2,919.56/4,374.38 = 1,762.88/x
  3. Step 3: Cross multiply
    2,919.56x = 4,374.38 × 1,762.88
  4. Step 4: Simplify right side
    2,919.56x = 7,711,489.55
  5. Step 5: Solve for x
    x = 7,711,489.55/2,919.56
  6. Step 6: Final answer
    x = 2,641.32

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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.