Home / 2,291.28-3,436.68-903.84

Finding the Fourth Proportional to 2,291.28, 3,436.68 and 903.84

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Solution

The fourth proportional to 2,291.28, 3,436.68 and 903.84 is: 1,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.28 : 3,436.68 = 903.84 : x
  2. Step 2: Convert to fraction form
    2,291.28/3,436.68 = 903.84/x
  3. Step 3: Cross multiply
    2,291.28x = 3,436.68 × 903.84
  4. Step 4: Simplify right side
    2,291.28x = 3,106,208.85
  5. Step 5: Solve for x
    x = 3,106,208.85/2,291.28
  6. Step 6: Final answer
    x = 1,355.67

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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.