Home / 5,427.84-8,141.78-1,323.84

Finding the Fourth Proportional to 5,427.84, 8,141.78 and 1,323.84

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Solution

The fourth proportional to 5,427.84, 8,141.78 and 1,323.84 is: 1,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.84 : 8,141.78 = 1,323.84 : x
  2. Step 2: Convert to fraction form
    5,427.84/8,141.78 = 1,323.84/x
  3. Step 3: Cross multiply
    5,427.84x = 8,141.78 × 1,323.84
  4. Step 4: Simplify right side
    5,427.84x = 10,778,447.88
  5. Step 5: Solve for x
    x = 10,778,447.88/5,427.84
  6. Step 6: Final answer
    x = 1,985.77

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Double scale
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Similar ratio
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1.5x scale

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.