Home / 3,725.81-5,590.62-1,647.21

Finding the Fourth Proportional to 3,725.81, 5,590.62 and 1,647.21

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Solution

The fourth proportional to 3,725.81, 5,590.62 and 1,647.21 is: 2,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.81 : 5,590.62 = 1,647.21 : x
  2. Step 2: Convert to fraction form
    3,725.81/5,590.62 = 1,647.21/x
  3. Step 3: Cross multiply
    3,725.81x = 5,590.62 × 1,647.21
  4. Step 4: Simplify right side
    3,725.81x = 9,208,925.17
  5. Step 5: Solve for x
    x = 9,208,925.17/3,725.81
  6. Step 6: Final answer
    x = 2,471.66

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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.