Home / 5,127.85-7,076.77-2,859.45

Finding the Fourth Proportional to 5,127.85, 7,076.77 and 2,859.45

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Solution

The fourth proportional to 5,127.85, 7,076.77 and 2,859.45 is: 3,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.85 : 7,076.77 = 2,859.45 : x
  2. Step 2: Convert to fraction form
    5,127.85/7,076.77 = 2,859.45/x
  3. Step 3: Cross multiply
    5,127.85x = 7,076.77 × 2,859.45
  4. Step 4: Simplify right side
    5,127.85x = 20,235,636.29
  5. Step 5: Solve for x
    x = 20,235,636.29/5,127.85
  6. Step 6: Final answer
    x = 3,946.22

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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.