Home / 5,418.63-7,477.72-3,060.78

Finding the Fourth Proportional to 5,418.63, 7,477.72 and 3,060.78

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Solution

The fourth proportional to 5,418.63, 7,477.72 and 3,060.78 is: 4,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.63 : 7,477.72 = 3,060.78 : x
  2. Step 2: Convert to fraction form
    5,418.63/7,477.72 = 3,060.78/x
  3. Step 3: Cross multiply
    5,418.63x = 7,477.72 × 3,060.78
  4. Step 4: Simplify right side
    5,418.63x = 22,887,620.13
  5. Step 5: Solve for x
    x = 22,887,620.13/5,418.63
  6. Step 6: Final answer
    x = 4,223.88

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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.