Home / 5,102.12-7,655.34-2,790.92

Finding the Fourth Proportional to 5,102.12, 7,655.34 and 2,790.92

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Solution

The fourth proportional to 5,102.12, 7,655.34 and 2,790.92 is: 4,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.12 : 7,655.34 = 2,790.92 : x
  2. Step 2: Convert to fraction form
    5,102.12/7,655.34 = 2,790.92/x
  3. Step 3: Cross multiply
    5,102.12x = 7,655.34 × 2,790.92
  4. Step 4: Simplify right side
    5,102.12x = 21,365,441.51
  5. Step 5: Solve for x
    x = 21,365,441.51/5,102.12
  6. Step 6: Final answer
    x = 4,187.56

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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.