Home / 5,443.14-8,164.68-1,980.39

Finding the Fourth Proportional to 5,443.14, 8,164.68 and 1,980.39

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Solution

The fourth proportional to 5,443.14, 8,164.68 and 1,980.39 is: 2,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.14 : 8,164.68 = 1,980.39 : x
  2. Step 2: Convert to fraction form
    5,443.14/8,164.68 = 1,980.39/x
  3. Step 3: Cross multiply
    5,443.14x = 8,164.68 × 1,980.39
  4. Step 4: Simplify right side
    5,443.14x = 16,169,250.63
  5. Step 5: Solve for x
    x = 16,169,250.63/5,443.14
  6. Step 6: Final answer
    x = 2,970.57

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Half scale
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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.