Home / 3,478.64-5,208.84-2,385.14

Finding the Fourth Proportional to 3,478.64, 5,208.84 and 2,385.14

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Solution

The fourth proportional to 3,478.64, 5,208.84 and 2,385.14 is: 3,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.64 : 5,208.84 = 2,385.14 : x
  2. Step 2: Convert to fraction form
    3,478.64/5,208.84 = 2,385.14/x
  3. Step 3: Cross multiply
    3,478.64x = 5,208.84 × 2,385.14
  4. Step 4: Simplify right side
    3,478.64x = 12,423,786.59
  5. Step 5: Solve for x
    x = 12,423,786.59/3,478.64
  6. Step 6: Final answer
    x = 3,571.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.