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Finding the Fourth Proportional to 1,888.11, 2,829.33 and 1,543.86

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Solution

The fourth proportional to 1,888.11, 2,829.33 and 1,543.86 is: 2,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.11 : 2,829.33 = 1,543.86 : x
  2. Step 2: Convert to fraction form
    1,888.11/2,829.33 = 1,543.86/x
  3. Step 3: Cross multiply
    1,888.11x = 2,829.33 × 1,543.86
  4. Step 4: Simplify right side
    1,888.11x = 4,368,089.41
  5. Step 5: Solve for x
    x = 4,368,089.41/1,888.11
  6. Step 6: Final answer
    x = 2,313.47

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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.