Home / 3,127.84-4,691.20-1,396.16

Finding the Fourth Proportional to 3,127.84, 4,691.20 and 1,396.16

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Solution

The fourth proportional to 3,127.84, 4,691.20 and 1,396.16 is: 2,093.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.84 : 4,691.20 = 1,396.16 : x
  2. Step 2: Convert to fraction form
    3,127.84/4,691.20 = 1,396.16/x
  3. Step 3: Cross multiply
    3,127.84x = 4,691.20 × 1,396.16
  4. Step 4: Simplify right side
    3,127.84x = 6,549,665.79
  5. Step 5: Solve for x
    x = 6,549,665.79/3,127.84
  6. Step 6: Final answer
    x = 2,093.99

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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.