Home / 5,290.40-7,935.96-2,692.64

Finding the Fourth Proportional to 5,290.40, 7,935.96 and 2,692.64

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Solution

The fourth proportional to 5,290.40, 7,935.96 and 2,692.64 is: 4,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.40 : 7,935.96 = 2,692.64 : x
  2. Step 2: Convert to fraction form
    5,290.40/7,935.96 = 2,692.64/x
  3. Step 3: Cross multiply
    5,290.40x = 7,935.96 × 2,692.64
  4. Step 4: Simplify right side
    5,290.40x = 21,368,683.33
  5. Step 5: Solve for x
    x = 21,368,683.33/5,290.40
  6. Step 6: Final answer
    x = 4,039.14

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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.