Home / 3,219.28-4,829.08-1,577.20

Finding the Fourth Proportional to 3,219.28, 4,829.08 and 1,577.20

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Solution

The fourth proportional to 3,219.28, 4,829.08 and 1,577.20 is: 2,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.28 : 4,829.08 = 1,577.20 : x
  2. Step 2: Convert to fraction form
    3,219.28/4,829.08 = 1,577.20/x
  3. Step 3: Cross multiply
    3,219.28x = 4,829.08 × 1,577.20
  4. Step 4: Simplify right side
    3,219.28x = 7,616,424.98
  5. Step 5: Solve for x
    x = 7,616,424.98/3,219.28
  6. Step 6: Final answer
    x = 2,365.88

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1.5x scale

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.