Home / 5,127.58-7,688.94-2,659.93

Finding the Fourth Proportional to 5,127.58, 7,688.94 and 2,659.93

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Solution

The fourth proportional to 5,127.58, 7,688.94 and 2,659.93 is: 3,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.58 : 7,688.94 = 2,659.93 : x
  2. Step 2: Convert to fraction form
    5,127.58/7,688.94 = 2,659.93/x
  3. Step 3: Cross multiply
    5,127.58x = 7,688.94 × 2,659.93
  4. Step 4: Simplify right side
    5,127.58x = 20,452,042.17
  5. Step 5: Solve for x
    x = 20,452,042.17/5,127.58
  6. Step 6: Final answer
    x = 3,988.63

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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.