Home / 2,116.49-2,921.33-1,454.99

Finding the Fourth Proportional to 2,116.49, 2,921.33 and 1,454.99

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Solution

The fourth proportional to 2,116.49, 2,921.33 and 1,454.99 is: 2,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.49 : 2,921.33 = 1,454.99 : x
  2. Step 2: Convert to fraction form
    2,116.49/2,921.33 = 1,454.99/x
  3. Step 3: Cross multiply
    2,116.49x = 2,921.33 × 1,454.99
  4. Step 4: Simplify right side
    2,116.49x = 4,250,494.97
  5. Step 5: Solve for x
    x = 4,250,494.97/2,116.49
  6. Step 6: Final answer
    x = 2,008.28

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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.