Home / 3,968.27-5,482.80-3,135.36

Finding the Fourth Proportional to 3,968.27, 5,482.80 and 3,135.36

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Solution

The fourth proportional to 3,968.27, 5,482.80 and 3,135.36 is: 4,332.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.27 : 5,482.80 = 3,135.36 : x
  2. Step 2: Convert to fraction form
    3,968.27/5,482.80 = 3,135.36/x
  3. Step 3: Cross multiply
    3,968.27x = 5,482.80 × 3,135.36
  4. Step 4: Simplify right side
    3,968.27x = 17,190,551.81
  5. Step 5: Solve for x
    x = 17,190,551.81/3,968.27
  6. Step 6: Final answer
    x = 4,332.01

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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.