Home / 3,551.85-4,901.31-2,136.17

Finding the Fourth Proportional to 3,551.85, 4,901.31 and 2,136.17

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Solution

The fourth proportional to 3,551.85, 4,901.31 and 2,136.17 is: 2,947.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.85 : 4,901.31 = 2,136.17 : x
  2. Step 2: Convert to fraction form
    3,551.85/4,901.31 = 2,136.17/x
  3. Step 3: Cross multiply
    3,551.85x = 4,901.31 × 2,136.17
  4. Step 4: Simplify right side
    3,551.85x = 10,470,043.64
  5. Step 5: Solve for x
    x = 10,470,043.64/3,551.85
  6. Step 6: Final answer
    x = 2,947.77

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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.