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Finding the Fourth Proportional to 2,803.77, 4,205.61 and 954.87

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Solution

The fourth proportional to 2,803.77, 4,205.61 and 954.87 is: 1,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.77 : 4,205.61 = 954.87 : x
  2. Step 2: Convert to fraction form
    2,803.77/4,205.61 = 954.87/x
  3. Step 3: Cross multiply
    2,803.77x = 4,205.61 × 954.87
  4. Step 4: Simplify right side
    2,803.77x = 4,015,810.82
  5. Step 5: Solve for x
    x = 4,015,810.82/2,803.77
  6. Step 6: Final answer
    x = 1,432.29

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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.