Home / 4,290.29-6,436.65-2,211.81

Finding the Fourth Proportional to 4,290.29, 6,436.65 and 2,211.81

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Solution

The fourth proportional to 4,290.29, 6,436.65 and 2,211.81 is: 3,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.29 : 6,436.65 = 2,211.81 : x
  2. Step 2: Convert to fraction form
    4,290.29/6,436.65 = 2,211.81/x
  3. Step 3: Cross multiply
    4,290.29x = 6,436.65 × 2,211.81
  4. Step 4: Simplify right side
    4,290.29x = 14,236,646.84
  5. Step 5: Solve for x
    x = 14,236,646.84/4,290.29
  6. Step 6: Final answer
    x = 3,318.34

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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.