Home / 4,090.62-6,132.68-1,780.50

Finding the Fourth Proportional to 4,090.62, 6,132.68 and 1,780.50

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Solution

The fourth proportional to 4,090.62, 6,132.68 and 1,780.50 is: 2,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.62 : 6,132.68 = 1,780.50 : x
  2. Step 2: Convert to fraction form
    4,090.62/6,132.68 = 1,780.50/x
  3. Step 3: Cross multiply
    4,090.62x = 6,132.68 × 1,780.50
  4. Step 4: Simplify right side
    4,090.62x = 10,919,236.74
  5. Step 5: Solve for x
    x = 10,919,236.74/4,090.62
  6. Step 6: Final answer
    x = 2,669.34

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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.