Home / 5,310.40-7,326.30-3,421.83

Finding the Fourth Proportional to 5,310.40, 7,326.30 and 3,421.83

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Solution

The fourth proportional to 5,310.40, 7,326.30 and 3,421.83 is: 4,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.40 : 7,326.30 = 3,421.83 : x
  2. Step 2: Convert to fraction form
    5,310.40/7,326.30 = 3,421.83/x
  3. Step 3: Cross multiply
    5,310.40x = 7,326.30 × 3,421.83
  4. Step 4: Simplify right side
    5,310.40x = 25,069,353.13
  5. Step 5: Solve for x
    x = 25,069,353.13/5,310.40
  6. Step 6: Final answer
    x = 4,720.80

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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.