Home / 3,927.12-5,418.32-2,530.68

Finding the Fourth Proportional to 3,927.12, 5,418.32 and 2,530.68

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Solution

The fourth proportional to 3,927.12, 5,418.32 and 2,530.68 is: 3,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.12 : 5,418.32 = 2,530.68 : x
  2. Step 2: Convert to fraction form
    3,927.12/5,418.32 = 2,530.68/x
  3. Step 3: Cross multiply
    3,927.12x = 5,418.32 × 2,530.68
  4. Step 4: Simplify right side
    3,927.12x = 13,712,034.06
  5. Step 5: Solve for x
    x = 13,712,034.06/3,927.12
  6. Step 6: Final answer
    x = 3,491.63

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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.