Home / 7,841.85-10,821.33-4,485.09

Finding the Fourth Proportional to 7,841.85, 10,821.33 and 4,485.09

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Solution

The fourth proportional to 7,841.85, 10,821.33 and 4,485.09 is: 6,189.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.85 : 10,821.33 = 4,485.09 : x
  2. Step 2: Convert to fraction form
    7,841.85/10,821.33 = 4,485.09/x
  3. Step 3: Cross multiply
    7,841.85x = 10,821.33 × 4,485.09
  4. Step 4: Simplify right side
    7,841.85x = 48,534,638.97
  5. Step 5: Solve for x
    x = 48,534,638.97/7,841.85
  6. Step 6: Final answer
    x = 6,189.18

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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.