Home / 5,418.19-7,477.55-3,060.78

Finding the Fourth Proportional to 5,418.19, 7,477.55 and 3,060.78

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Solution

The fourth proportional to 5,418.19, 7,477.55 and 3,060.78 is: 4,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.19 : 7,477.55 = 3,060.78 : x
  2. Step 2: Convert to fraction form
    5,418.19/7,477.55 = 3,060.78/x
  3. Step 3: Cross multiply
    5,418.19x = 7,477.55 × 3,060.78
  4. Step 4: Simplify right side
    5,418.19x = 22,887,135.49
  5. Step 5: Solve for x
    x = 22,887,135.49/5,418.19
  6. Step 6: Final answer
    x = 4,224.13

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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.