Home / 3,392.72-4,684.68-3,130.64

Finding the Fourth Proportional to 3,392.72, 4,684.68 and 3,130.64

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Solution

The fourth proportional to 3,392.72, 4,684.68 and 3,130.64 is: 4,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.72 : 4,684.68 = 3,130.64 : x
  2. Step 2: Convert to fraction form
    3,392.72/4,684.68 = 3,130.64/x
  3. Step 3: Cross multiply
    3,392.72x = 4,684.68 × 3,130.64
  4. Step 4: Simplify right side
    3,392.72x = 14,666,046.60
  5. Step 5: Solve for x
    x = 14,666,046.60/3,392.72
  6. Step 6: Final answer
    x = 4,322.80

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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.