Home / 2,476.17-3,416.94-1,428.21

Finding the Fourth Proportional to 2,476.17, 3,416.94 and 1,428.21

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Solution

The fourth proportional to 2,476.17, 3,416.94 and 1,428.21 is: 1,970.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.17 : 3,416.94 = 1,428.21 : x
  2. Step 2: Convert to fraction form
    2,476.17/3,416.94 = 1,428.21/x
  3. Step 3: Cross multiply
    2,476.17x = 3,416.94 × 1,428.21
  4. Step 4: Simplify right side
    2,476.17x = 4,880,107.88
  5. Step 5: Solve for x
    x = 4,880,107.88/2,476.17
  6. Step 6: Final answer
    x = 1,970.83

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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.