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Finding the Fourth Proportional to 1,887.05, 2,607.48 and 1,357.69

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Solution

The fourth proportional to 1,887.05, 2,607.48 and 1,357.69 is: 1,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.05 : 2,607.48 = 1,357.69 : x
  2. Step 2: Convert to fraction form
    1,887.05/2,607.48 = 1,357.69/x
  3. Step 3: Cross multiply
    1,887.05x = 2,607.48 × 1,357.69
  4. Step 4: Simplify right side
    1,887.05x = 3,540,149.52
  5. Step 5: Solve for x
    x = 3,540,149.52/1,887.05
  6. Step 6: Final answer
    x = 1,876.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.