Home / 1,640.96-2,454.08-1,487.84

Finding the Fourth Proportional to 1,640.96, 2,454.08 and 1,487.84

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Solution

The fourth proportional to 1,640.96, 2,454.08 and 1,487.84 is: 2,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.96 : 2,454.08 = 1,487.84 : x
  2. Step 2: Convert to fraction form
    1,640.96/2,454.08 = 1,487.84/x
  3. Step 3: Cross multiply
    1,640.96x = 2,454.08 × 1,487.84
  4. Step 4: Simplify right side
    1,640.96x = 3,651,278.39
  5. Step 5: Solve for x
    x = 3,651,278.39/1,640.96
  6. Step 6: Final answer
    x = 2,225.09

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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.