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Finding the Fourth Proportional to 5,778.24, 7,974.08 and 3,389.93

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Solution

The fourth proportional to 5,778.24, 7,974.08 and 3,389.93 is: 4,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.24 : 7,974.08 = 3,389.93 : x
  2. Step 2: Convert to fraction form
    5,778.24/7,974.08 = 3,389.93/x
  3. Step 3: Cross multiply
    5,778.24x = 7,974.08 × 3,389.93
  4. Step 4: Simplify right side
    5,778.24x = 27,031,516.19
  5. Step 5: Solve for x
    x = 27,031,516.19/5,778.24
  6. Step 6: Final answer
    x = 4,678.16

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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.