Home / 7,242.21-9,991.92-4,055.04

Finding the Fourth Proportional to 7,242.21, 9,991.92 and 4,055.04

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Solution

The fourth proportional to 7,242.21, 9,991.92 and 4,055.04 is: 5,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.21 : 9,991.92 = 4,055.04 : x
  2. Step 2: Convert to fraction form
    7,242.21/9,991.92 = 4,055.04/x
  3. Step 3: Cross multiply
    7,242.21x = 9,991.92 × 4,055.04
  4. Step 4: Simplify right side
    7,242.21x = 40,517,585.32
  5. Step 5: Solve for x
    x = 40,517,585.32/7,242.21
  6. Step 6: Final answer
    x = 5,594.64

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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.