Home / 5,127.81-7,692.30-1,618.08

Finding the Fourth Proportional to 5,127.81, 7,692.30 and 1,618.08

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Solution

The fourth proportional to 5,127.81, 7,692.30 and 1,618.08 is: 2,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.81 : 7,692.30 = 1,618.08 : x
  2. Step 2: Convert to fraction form
    5,127.81/7,692.30 = 1,618.08/x
  3. Step 3: Cross multiply
    5,127.81x = 7,692.30 × 1,618.08
  4. Step 4: Simplify right side
    5,127.81x = 12,446,756.78
  5. Step 5: Solve for x
    x = 12,446,756.78/5,127.81
  6. Step 6: Final answer
    x = 2,427.30

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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.