Home / 3,127.41-4,689.68-935.69

Finding the Fourth Proportional to 3,127.41, 4,689.68 and 935.69

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Solution

The fourth proportional to 3,127.41, 4,689.68 and 935.69 is: 1,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.41 : 4,689.68 = 935.69 : x
  2. Step 2: Convert to fraction form
    3,127.41/4,689.68 = 935.69/x
  3. Step 3: Cross multiply
    3,127.41x = 4,689.68 × 935.69
  4. Step 4: Simplify right side
    3,127.41x = 4,388,058.55
  5. Step 5: Solve for x
    x = 4,388,058.55/3,127.41
  6. Step 6: Final answer
    x = 1,403.10

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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.