Home / 1,943.84-2,685.12-1,553.60

Finding the Fourth Proportional to 1,943.84, 2,685.12 and 1,553.60

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Solution

The fourth proportional to 1,943.84, 2,685.12 and 1,553.60 is: 2,146.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.84 : 2,685.12 = 1,553.60 : x
  2. Step 2: Convert to fraction form
    1,943.84/2,685.12 = 1,553.60/x
  3. Step 3: Cross multiply
    1,943.84x = 2,685.12 × 1,553.60
  4. Step 4: Simplify right side
    1,943.84x = 4,171,602.43
  5. Step 5: Solve for x
    x = 4,171,602.43/1,943.84
  6. Step 6: Final answer
    x = 2,146.06

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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.