Home / 5,421.21-7,479.04-3,296.77

Finding the Fourth Proportional to 5,421.21, 7,479.04 and 3,296.77

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Solution

The fourth proportional to 5,421.21, 7,479.04 and 3,296.77 is: 4,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.21 : 7,479.04 = 3,296.77 : x
  2. Step 2: Convert to fraction form
    5,421.21/7,479.04 = 3,296.77/x
  3. Step 3: Cross multiply
    5,421.21x = 7,479.04 × 3,296.77
  4. Step 4: Simplify right side
    5,421.21x = 24,656,674.70
  5. Step 5: Solve for x
    x = 24,656,674.70/5,421.21
  6. Step 6: Final answer
    x = 4,548.19

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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.