Home / 5,055.12-6,975.84-2,816.92

Finding the Fourth Proportional to 5,055.12, 6,975.84 and 2,816.92

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Solution

The fourth proportional to 5,055.12, 6,975.84 and 2,816.92 is: 3,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.12 : 6,975.84 = 2,816.92 : x
  2. Step 2: Convert to fraction form
    5,055.12/6,975.84 = 2,816.92/x
  3. Step 3: Cross multiply
    5,055.12x = 6,975.84 × 2,816.92
  4. Step 4: Simplify right side
    5,055.12x = 19,650,383.21
  5. Step 5: Solve for x
    x = 19,650,383.21/5,055.12
  6. Step 6: Final answer
    x = 3,887.22

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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.