Home / 3,588.56-5,380.76-1,638.88

Finding the Fourth Proportional to 3,588.56, 5,380.76 and 1,638.88

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Solution

The fourth proportional to 3,588.56, 5,380.76 and 1,638.88 is: 2,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.56 : 5,380.76 = 1,638.88 : x
  2. Step 2: Convert to fraction form
    3,588.56/5,380.76 = 1,638.88/x
  3. Step 3: Cross multiply
    3,588.56x = 5,380.76 × 1,638.88
  4. Step 4: Simplify right side
    3,588.56x = 8,818,419.95
  5. Step 5: Solve for x
    x = 8,818,419.95/3,588.56
  6. Step 6: Final answer
    x = 2,457.37

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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.