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Finding the Fourth Proportional to 5,776.76, 8,665.13 and 1,394.22

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Solution

The fourth proportional to 5,776.76, 8,665.13 and 1,394.22 is: 2,091.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.76 : 8,665.13 = 1,394.22 : x
  2. Step 2: Convert to fraction form
    5,776.76/8,665.13 = 1,394.22/x
  3. Step 3: Cross multiply
    5,776.76x = 8,665.13 × 1,394.22
  4. Step 4: Simplify right side
    5,776.76x = 12,081,090.58
  5. Step 5: Solve for x
    x = 12,081,090.58/5,776.76
  6. Step 6: Final answer
    x = 2,091.33

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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.