Home / 7,327.37-10,990.89-1,780.74

Finding the Fourth Proportional to 7,327.37, 10,990.89 and 1,780.74

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Solution

The fourth proportional to 7,327.37, 10,990.89 and 1,780.74 is: 2,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.37 : 10,990.89 = 1,780.74 : x
  2. Step 2: Convert to fraction form
    7,327.37/10,990.89 = 1,780.74/x
  3. Step 3: Cross multiply
    7,327.37x = 10,990.89 × 1,780.74
  4. Step 4: Simplify right side
    7,327.37x = 19,571,917.46
  5. Step 5: Solve for x
    x = 19,571,917.46/7,327.37
  6. Step 6: Final answer
    x = 2,671.07

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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.