Home / 2,672.01-4,008.88-1,285.45

Finding the Fourth Proportional to 2,672.01, 4,008.88 and 1,285.45

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Solution

The fourth proportional to 2,672.01, 4,008.88 and 1,285.45 is: 1,928.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.01 : 4,008.88 = 1,285.45 : x
  2. Step 2: Convert to fraction form
    2,672.01/4,008.88 = 1,285.45/x
  3. Step 3: Cross multiply
    2,672.01x = 4,008.88 × 1,285.45
  4. Step 4: Simplify right side
    2,672.01x = 5,153,214.80
  5. Step 5: Solve for x
    x = 5,153,214.80/2,672.01
  6. Step 6: Final answer
    x = 1,928.59

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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.