Home / 3,821.00-5,269.93-2,421.32

Finding the Fourth Proportional to 3,821.00, 5,269.93 and 2,421.32

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Solution

The fourth proportional to 3,821.00, 5,269.93 and 2,421.32 is: 3,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.00 : 5,269.93 = 2,421.32 : x
  2. Step 2: Convert to fraction form
    3,821.00/5,269.93 = 2,421.32/x
  3. Step 3: Cross multiply
    3,821.00x = 5,269.93 × 2,421.32
  4. Step 4: Simplify right side
    3,821.00x = 12,760,154.50
  5. Step 5: Solve for x
    x = 12,760,154.50/3,821.00
  6. Step 6: Final answer
    x = 3,339.48

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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.