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Finding the Fourth Proportional to 2,888.80, 4,325.13 and 1,898.57

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Solution

The fourth proportional to 2,888.80, 4,325.13 and 1,898.57 is: 2,842.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.80 : 4,325.13 = 1,898.57 : x
  2. Step 2: Convert to fraction form
    2,888.80/4,325.13 = 1,898.57/x
  3. Step 3: Cross multiply
    2,888.80x = 4,325.13 × 1,898.57
  4. Step 4: Simplify right side
    2,888.80x = 8,211,572.88
  5. Step 5: Solve for x
    x = 8,211,572.88/2,888.80
  6. Step 6: Final answer
    x = 2,842.56

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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.