Home / 4,271.09-6,407.37-1,638.45

Finding the Fourth Proportional to 4,271.09, 6,407.37 and 1,638.45

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Solution

The fourth proportional to 4,271.09, 6,407.37 and 1,638.45 is: 2,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.09 : 6,407.37 = 1,638.45 : x
  2. Step 2: Convert to fraction form
    4,271.09/6,407.37 = 1,638.45/x
  3. Step 3: Cross multiply
    4,271.09x = 6,407.37 × 1,638.45
  4. Step 4: Simplify right side
    4,271.09x = 10,498,155.38
  5. Step 5: Solve for x
    x = 10,498,155.38/4,271.09
  6. Step 6: Final answer
    x = 2,457.96

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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.