Home / 1,921.40-2,882.96-933.67

Finding the Fourth Proportional to 1,921.40, 2,882.96 and 933.67

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Solution

The fourth proportional to 1,921.40, 2,882.96 and 933.67 is: 1,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.40 : 2,882.96 = 933.67 : x
  2. Step 2: Convert to fraction form
    1,921.40/2,882.96 = 933.67/x
  3. Step 3: Cross multiply
    1,921.40x = 2,882.96 × 933.67
  4. Step 4: Simplify right side
    1,921.40x = 2,691,733.26
  5. Step 5: Solve for x
    x = 2,691,733.26/1,921.40
  6. Step 6: Final answer
    x = 1,400.92

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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.