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Finding the Fourth Proportional to 896.77, 1,237.38 and 547.39

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Solution

The fourth proportional to 896.77, 1,237.38 and 547.39 is: 755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.77 : 1,237.38 = 547.39 : x
  2. Step 2: Convert to fraction form
    896.77/1,237.38 = 547.39/x
  3. Step 3: Cross multiply
    896.77x = 1,237.38 × 547.39
  4. Step 4: Simplify right side
    896.77x = 677,329.44
  5. Step 5: Solve for x
    x = 677,329.44/896.77
  6. Step 6: Final answer
    x = 755.30

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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.