Home / 1,846.40-2,769.59-613.78

Finding the Fourth Proportional to 1,846.40, 2,769.59 and 613.78

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Solution

The fourth proportional to 1,846.40, 2,769.59 and 613.78 is: 920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,846.40 : 2,769.59 = 613.78 : x
  2. Step 2: Convert to fraction form
    1,846.40/2,769.59 = 613.78/x
  3. Step 3: Cross multiply
    1,846.40x = 2,769.59 × 613.78
  4. Step 4: Simplify right side
    1,846.40x = 1,699,913.56
  5. Step 5: Solve for x
    x = 1,699,913.56/1,846.40
  6. Step 6: Final answer
    x = 920.67

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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.