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Finding the Fourth Proportional to 1,888.02, 2,827.93 and 1,155.38

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Solution

The fourth proportional to 1,888.02, 2,827.93 and 1,155.38 is: 1,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.02 : 2,827.93 = 1,155.38 : x
  2. Step 2: Convert to fraction form
    1,888.02/2,827.93 = 1,155.38/x
  3. Step 3: Cross multiply
    1,888.02x = 2,827.93 × 1,155.38
  4. Step 4: Simplify right side
    1,888.02x = 3,267,333.76
  5. Step 5: Solve for x
    x = 3,267,333.76/1,888.02
  6. Step 6: Final answer
    x = 1,730.56

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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.