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Finding the Fourth Proportional to 2,888.10, 4,328.10 and 2,539.80

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Solution

The fourth proportional to 2,888.10, 4,328.10 and 2,539.80 is: 3,806.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.10 : 4,328.10 = 2,539.80 : x
  2. Step 2: Convert to fraction form
    2,888.10/4,328.10 = 2,539.80/x
  3. Step 3: Cross multiply
    2,888.10x = 4,328.10 × 2,539.80
  4. Step 4: Simplify right side
    2,888.10x = 10,992,508.38
  5. Step 5: Solve for x
    x = 10,992,508.38/2,888.10
  6. Step 6: Final answer
    x = 3,806.14

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1.5x scale

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.