Home / 5,907.81-8,153.19-3,390.69

Finding the Fourth Proportional to 5,907.81, 8,153.19 and 3,390.69

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Solution

The fourth proportional to 5,907.81, 8,153.19 and 3,390.69 is: 4,679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,907.81 : 8,153.19 = 3,390.69 : x
  2. Step 2: Convert to fraction form
    5,907.81/8,153.19 = 3,390.69/x
  3. Step 3: Cross multiply
    5,907.81x = 8,153.19 × 3,390.69
  4. Step 4: Simplify right side
    5,907.81x = 27,644,939.80
  5. Step 5: Solve for x
    x = 27,644,939.80/5,907.81
  6. Step 6: Final answer
    x = 4,679.39

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Double scale
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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.