Home / 5,101.38-7,651.35-1,638.18

Finding the Fourth Proportional to 5,101.38, 7,651.35 and 1,638.18

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Solution

The fourth proportional to 5,101.38, 7,651.35 and 1,638.18 is: 2,457.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.38 : 7,651.35 = 1,638.18 : x
  2. Step 2: Convert to fraction form
    5,101.38/7,651.35 = 1,638.18/x
  3. Step 3: Cross multiply
    5,101.38x = 7,651.35 × 1,638.18
  4. Step 4: Simplify right side
    5,101.38x = 12,534,288.54
  5. Step 5: Solve for x
    x = 12,534,288.54/5,101.38
  6. Step 6: Final answer
    x = 2,457.04

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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.