Home / 5,638.24-8,458.49-1,742.50

Finding the Fourth Proportional to 5,638.24, 8,458.49 and 1,742.50

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Solution

The fourth proportional to 5,638.24, 8,458.49 and 1,742.50 is: 2,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.24 : 8,458.49 = 1,742.50 : x
  2. Step 2: Convert to fraction form
    5,638.24/8,458.49 = 1,742.50/x
  3. Step 3: Cross multiply
    5,638.24x = 8,458.49 × 1,742.50
  4. Step 4: Simplify right side
    5,638.24x = 14,738,918.83
  5. Step 5: Solve for x
    x = 14,738,918.83/5,638.24
  6. Step 6: Final answer
    x = 2,614.10

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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.