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Finding the Fourth Proportional to 2,869.02, 4,269.51 and 2,765.34

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Solution

The fourth proportional to 2,869.02, 4,269.51 and 2,765.34 is: 4,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.02 : 4,269.51 = 2,765.34 : x
  2. Step 2: Convert to fraction form
    2,869.02/4,269.51 = 2,765.34/x
  3. Step 3: Cross multiply
    2,869.02x = 4,269.51 × 2,765.34
  4. Step 4: Simplify right side
    2,869.02x = 11,806,646.78
  5. Step 5: Solve for x
    x = 11,806,646.78/2,869.02
  6. Step 6: Final answer
    x = 4,115.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.