Home / 5,214.02-7,819.65-1,928.05

Finding the Fourth Proportional to 5,214.02, 7,819.65 and 1,928.05

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Solution

The fourth proportional to 5,214.02, 7,819.65 and 1,928.05 is: 2,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.02 : 7,819.65 = 1,928.05 : x
  2. Step 2: Convert to fraction form
    5,214.02/7,819.65 = 1,928.05/x
  3. Step 3: Cross multiply
    5,214.02x = 7,819.65 × 1,928.05
  4. Step 4: Simplify right side
    5,214.02x = 15,076,637.08
  5. Step 5: Solve for x
    x = 15,076,637.08/5,214.02
  6. Step 6: Final answer
    x = 2,891.56

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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.