Home / 7,327.46-10,991.03-1,780.83

Finding the Fourth Proportional to 7,327.46, 10,991.03 and 1,780.83

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Solution

The fourth proportional to 7,327.46, 10,991.03 and 1,780.83 is: 2,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.46 : 10,991.03 = 1,780.83 : x
  2. Step 2: Convert to fraction form
    7,327.46/10,991.03 = 1,780.83/x
  3. Step 3: Cross multiply
    7,327.46x = 10,991.03 × 1,780.83
  4. Step 4: Simplify right side
    7,327.46x = 19,573,157.07
  5. Step 5: Solve for x
    x = 19,573,157.07/7,327.46
  6. Step 6: Final answer
    x = 2,671.21

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Half scale
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Double scale
Find fourth proportional to 7,328.46, 10,992.53 and 1,781.83
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.