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Finding the Fourth Proportional to 5,658.33, 7,808.68 and 3,140.63

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Solution

The fourth proportional to 5,658.33, 7,808.68 and 3,140.63 is: 4,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.33 : 7,808.68 = 3,140.63 : x
  2. Step 2: Convert to fraction form
    5,658.33/7,808.68 = 3,140.63/x
  3. Step 3: Cross multiply
    5,658.33x = 7,808.68 × 3,140.63
  4. Step 4: Simplify right side
    5,658.33x = 24,524,127.77
  5. Step 5: Solve for x
    x = 24,524,127.77/5,658.33
  6. Step 6: Final answer
    x = 4,334.16

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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.