Home / 5,345.98-8,020.60-3,789

Finding the Fourth Proportional to 5,345.98, 8,020.60 and 3,789

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Solution

The fourth proportional to 5,345.98, 8,020.60 and 3,789 is: 5,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.98 : 8,020.60 = 3,789 : x
  2. Step 2: Convert to fraction form
    5,345.98/8,020.60 = 3,789/x
  3. Step 3: Cross multiply
    5,345.98x = 8,020.60 × 3,789
  4. Step 4: Simplify right side
    5,345.98x = 30,390,053.40
  5. Step 5: Solve for x
    x = 30,390,053.40/5,345.98
  6. Step 6: Final answer
    x = 5,684.66

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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.