Home / 2,043.11-2,812.38-1,780.67

Finding the Fourth Proportional to 2,043.11, 2,812.38 and 1,780.67

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Solution

The fourth proportional to 2,043.11, 2,812.38 and 1,780.67 is: 2,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.11 : 2,812.38 = 1,780.67 : x
  2. Step 2: Convert to fraction form
    2,043.11/2,812.38 = 1,780.67/x
  3. Step 3: Cross multiply
    2,043.11x = 2,812.38 × 1,780.67
  4. Step 4: Simplify right side
    2,043.11x = 5,007,920.69
  5. Step 5: Solve for x
    x = 5,007,920.69/2,043.11
  6. Step 6: Final answer
    x = 2,451.13

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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.