Home / 5,127.63-7,074.82-3,137.46

Finding the Fourth Proportional to 5,127.63, 7,074.82 and 3,137.46

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Solution

The fourth proportional to 5,127.63, 7,074.82 and 3,137.46 is: 4,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.63 : 7,074.82 = 3,137.46 : x
  2. Step 2: Convert to fraction form
    5,127.63/7,074.82 = 3,137.46/x
  3. Step 3: Cross multiply
    5,127.63x = 7,074.82 × 3,137.46
  4. Step 4: Simplify right side
    5,127.63x = 22,196,964.76
  5. Step 5: Solve for x
    x = 22,196,964.76/5,127.63
  6. Step 6: Final answer
    x = 4,328.89

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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.