Home / 3,275.30-4,519.86-1,783.21

Finding the Fourth Proportional to 3,275.30, 4,519.86 and 1,783.21

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Solution

The fourth proportional to 3,275.30, 4,519.86 and 1,783.21 is: 2,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.30 : 4,519.86 = 1,783.21 : x
  2. Step 2: Convert to fraction form
    3,275.30/4,519.86 = 1,783.21/x
  3. Step 3: Cross multiply
    3,275.30x = 4,519.86 × 1,783.21
  4. Step 4: Simplify right side
    3,275.30x = 8,059,848.25
  5. Step 5: Solve for x
    x = 8,059,848.25/3,275.30
  6. Step 6: Final answer
    x = 2,460.80

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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.