Home / 1,620.04-2,427.18-680.92

Finding the Fourth Proportional to 1,620.04, 2,427.18 and 680.92

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Solution

The fourth proportional to 1,620.04, 2,427.18 and 680.92 is: 1,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.04 : 2,427.18 = 680.92 : x
  2. Step 2: Convert to fraction form
    1,620.04/2,427.18 = 680.92/x
  3. Step 3: Cross multiply
    1,620.04x = 2,427.18 × 680.92
  4. Step 4: Simplify right side
    1,620.04x = 1,652,715.41
  5. Step 5: Solve for x
    x = 1,652,715.41/1,620.04
  6. Step 6: Final answer
    x = 1,020.17

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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.