Home / 3,291.48-4,539.69-1,964.91

Finding the Fourth Proportional to 3,291.48, 4,539.69 and 1,964.91

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Solution

The fourth proportional to 3,291.48, 4,539.69 and 1,964.91 is: 2,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.48 : 4,539.69 = 1,964.91 : x
  2. Step 2: Convert to fraction form
    3,291.48/4,539.69 = 1,964.91/x
  3. Step 3: Cross multiply
    3,291.48x = 4,539.69 × 1,964.91
  4. Step 4: Simplify right side
    3,291.48x = 8,920,049.75
  5. Step 5: Solve for x
    x = 8,920,049.75/3,291.48
  6. Step 6: Final answer
    x = 2,710.04

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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.