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Finding the Fourth Proportional to 1,436.97, 2,155.95 and 888.50

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Solution

The fourth proportional to 1,436.97, 2,155.95 and 888.50 is: 1,333.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.97 : 2,155.95 = 888.50 : x
  2. Step 2: Convert to fraction form
    1,436.97/2,155.95 = 888.50/x
  3. Step 3: Cross multiply
    1,436.97x = 2,155.95 × 888.50
  4. Step 4: Simplify right side
    1,436.97x = 1,915,566.96
  5. Step 5: Solve for x
    x = 1,915,566.96/1,436.97
  6. Step 6: Final answer
    x = 1,333.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.