Home / 7,127.28-10,692.16-3,436.16

Finding the Fourth Proportional to 7,127.28, 10,692.16 and 3,436.16

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Solution

The fourth proportional to 7,127.28, 10,692.16 and 3,436.16 is: 5,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.28 : 10,692.16 = 3,436.16 : x
  2. Step 2: Convert to fraction form
    7,127.28/10,692.16 = 3,436.16/x
  3. Step 3: Cross multiply
    7,127.28x = 10,692.16 × 3,436.16
  4. Step 4: Simplify right side
    7,127.28x = 36,739,972.51
  5. Step 5: Solve for x
    x = 36,739,972.51/7,127.28
  6. Step 6: Final answer
    x = 5,154.84

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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.