Home / 5,120.60-7,066.93-3,133.16

Finding the Fourth Proportional to 5,120.60, 7,066.93 and 3,133.16

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Solution

The fourth proportional to 5,120.60, 7,066.93 and 3,133.16 is: 4,324.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.60 : 7,066.93 = 3,133.16 : x
  2. Step 2: Convert to fraction form
    5,120.60/7,066.93 = 3,133.16/x
  3. Step 3: Cross multiply
    5,120.60x = 7,066.93 × 3,133.16
  4. Step 4: Simplify right side
    5,120.60x = 22,141,851.36
  5. Step 5: Solve for x
    x = 22,141,851.36/5,120.60
  6. Step 6: Final answer
    x = 4,324.07

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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.