Home / 1,622.46-2,428.80-1,403.76

Finding the Fourth Proportional to 1,622.46, 2,428.80 and 1,403.76

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Solution

The fourth proportional to 1,622.46, 2,428.80 and 1,403.76 is: 2,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.46 : 2,428.80 = 1,403.76 : x
  2. Step 2: Convert to fraction form
    1,622.46/2,428.80 = 1,403.76/x
  3. Step 3: Cross multiply
    1,622.46x = 2,428.80 × 1,403.76
  4. Step 4: Simplify right side
    1,622.46x = 3,409,452.29
  5. Step 5: Solve for x
    x = 3,409,452.29/1,622.46
  6. Step 6: Final answer
    x = 2,101.41

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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.