Home / 3,418.80-4,720.04-2,477.64

Finding the Fourth Proportional to 3,418.80, 4,720.04 and 2,477.64

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Solution

The fourth proportional to 3,418.80, 4,720.04 and 2,477.64 is: 3,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.80 : 4,720.04 = 2,477.64 : x
  2. Step 2: Convert to fraction form
    3,418.80/4,720.04 = 2,477.64/x
  3. Step 3: Cross multiply
    3,418.80x = 4,720.04 × 2,477.64
  4. Step 4: Simplify right side
    3,418.80x = 11,694,559.91
  5. Step 5: Solve for x
    x = 11,694,559.91/3,418.80
  6. Step 6: Final answer
    x = 3,420.66

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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.