Home / 2,029.78-2,800.94-1,145.67

Finding the Fourth Proportional to 2,029.78, 2,800.94 and 1,145.67

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Solution

The fourth proportional to 2,029.78, 2,800.94 and 1,145.67 is: 1,580.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.78 : 2,800.94 = 1,145.67 : x
  2. Step 2: Convert to fraction form
    2,029.78/2,800.94 = 1,145.67/x
  3. Step 3: Cross multiply
    2,029.78x = 2,800.94 × 1,145.67
  4. Step 4: Simplify right side
    2,029.78x = 3,208,952.93
  5. Step 5: Solve for x
    x = 3,208,952.93/2,029.78
  6. Step 6: Final answer
    x = 1,580.94

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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.