Home / 3,930.99-5,423.83-2,657.25

Finding the Fourth Proportional to 3,930.99, 5,423.83 and 2,657.25

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Solution

The fourth proportional to 3,930.99, 5,423.83 and 2,657.25 is: 3,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.99 : 5,423.83 = 2,657.25 : x
  2. Step 2: Convert to fraction form
    3,930.99/5,423.83 = 2,657.25/x
  3. Step 3: Cross multiply
    3,930.99x = 5,423.83 × 2,657.25
  4. Step 4: Simplify right side
    3,930.99x = 14,412,438.51
  5. Step 5: Solve for x
    x = 14,412,438.51/3,930.99
  6. Step 6: Final answer
    x = 3,666.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.