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Finding the Fourth Proportional to 1,593.88, 2,199.40 and 885.58

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Solution

The fourth proportional to 1,593.88, 2,199.40 and 885.58 is: 1,222.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.88 : 2,199.40 = 885.58 : x
  2. Step 2: Convert to fraction form
    1,593.88/2,199.40 = 885.58/x
  3. Step 3: Cross multiply
    1,593.88x = 2,199.40 × 885.58
  4. Step 4: Simplify right side
    1,593.88x = 1,947,754.29
  5. Step 5: Solve for x
    x = 1,947,754.29/1,593.88
  6. Step 6: Final answer
    x = 1,222.02

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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.