Home / 3,638.10-5,458.20-1,558.23

Finding the Fourth Proportional to 3,638.10, 5,458.20 and 1,558.23

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Solution

The fourth proportional to 3,638.10, 5,458.20 and 1,558.23 is: 2,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.10 : 5,458.20 = 1,558.23 : x
  2. Step 2: Convert to fraction form
    3,638.10/5,458.20 = 1,558.23/x
  3. Step 3: Cross multiply
    3,638.10x = 5,458.20 × 1,558.23
  4. Step 4: Simplify right side
    3,638.10x = 8,505,130.99
  5. Step 5: Solve for x
    x = 8,505,130.99/3,638.10
  6. Step 6: Final answer
    x = 2,337.79

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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.