Home / 3,624.21-5,430.98-1,620.47

Finding the Fourth Proportional to 3,624.21, 5,430.98 and 1,620.47

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Solution

The fourth proportional to 3,624.21, 5,430.98 and 1,620.47 is: 2,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.21 : 5,430.98 = 1,620.47 : x
  2. Step 2: Convert to fraction form
    3,624.21/5,430.98 = 1,620.47/x
  3. Step 3: Cross multiply
    3,624.21x = 5,430.98 × 1,620.47
  4. Step 4: Simplify right side
    3,624.21x = 8,800,757.79
  5. Step 5: Solve for x
    x = 8,800,757.79/3,624.21
  6. Step 6: Final answer
    x = 2,428.32

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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.