Home / 3,191.79-4,404.58-1,775.40

Finding the Fourth Proportional to 3,191.79, 4,404.58 and 1,775.40

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Solution

The fourth proportional to 3,191.79, 4,404.58 and 1,775.40 is: 2,450.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.79 : 4,404.58 = 1,775.40 : x
  2. Step 2: Convert to fraction form
    3,191.79/4,404.58 = 1,775.40/x
  3. Step 3: Cross multiply
    3,191.79x = 4,404.58 × 1,775.40
  4. Step 4: Simplify right side
    3,191.79x = 7,819,905.14
  5. Step 5: Solve for x
    x = 7,819,905.14/3,191.79
  6. Step 6: Final answer
    x = 2,450.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.