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Finding the Fourth Proportional to 1,203.46, 1,803.36 and 893.87

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Solution

The fourth proportional to 1,203.46, 1,803.36 and 893.87 is: 1,339.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.46 : 1,803.36 = 893.87 : x
  2. Step 2: Convert to fraction form
    1,203.46/1,803.36 = 893.87/x
  3. Step 3: Cross multiply
    1,203.46x = 1,803.36 × 893.87
  4. Step 4: Simplify right side
    1,203.46x = 1,611,970.50
  5. Step 5: Solve for x
    x = 1,611,970.50/1,203.46
  6. Step 6: Final answer
    x = 1,339.45

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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.