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Finding the Fourth Proportional to 1,350.03, 1,861.86 and 1,054.80

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Solution

The fourth proportional to 1,350.03, 1,861.86 and 1,054.80 is: 1,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.03 : 1,861.86 = 1,054.80 : x
  2. Step 2: Convert to fraction form
    1,350.03/1,861.86 = 1,054.80/x
  3. Step 3: Cross multiply
    1,350.03x = 1,861.86 × 1,054.80
  4. Step 4: Simplify right side
    1,350.03x = 1,963,889.93
  5. Step 5: Solve for x
    x = 1,963,889.93/1,350.03
  6. Step 6: Final answer
    x = 1,454.70

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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.