Home / 5,125.86-7,686.60-2,162.36

Finding the Fourth Proportional to 5,125.86, 7,686.60 and 2,162.36

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Solution

The fourth proportional to 5,125.86, 7,686.60 and 2,162.36 is: 3,242.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.86 : 7,686.60 = 2,162.36 : x
  2. Step 2: Convert to fraction form
    5,125.86/7,686.60 = 2,162.36/x
  3. Step 3: Cross multiply
    5,125.86x = 7,686.60 × 2,162.36
  4. Step 4: Simplify right side
    5,125.86x = 16,621,196.38
  5. Step 5: Solve for x
    x = 16,621,196.38/5,125.86
  6. Step 6: Final answer
    x = 3,242.62

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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.