Home / 5,091.15-7,635.74-1,392.88

Finding the Fourth Proportional to 5,091.15, 7,635.74 and 1,392.88

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Solution

The fourth proportional to 5,091.15, 7,635.74 and 1,392.88 is: 2,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.15 : 7,635.74 = 1,392.88 : x
  2. Step 2: Convert to fraction form
    5,091.15/7,635.74 = 1,392.88/x
  3. Step 3: Cross multiply
    5,091.15x = 7,635.74 × 1,392.88
  4. Step 4: Simplify right side
    5,091.15x = 10,635,701.76
  5. Step 5: Solve for x
    x = 10,635,701.76/5,091.15
  6. Step 6: Final answer
    x = 2,089.06

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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.