Home / 1,647.79-2,468.05-1,186.47

Finding the Fourth Proportional to 1,647.79, 2,468.05 and 1,186.47

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Solution

The fourth proportional to 1,647.79, 2,468.05 and 1,186.47 is: 1,777.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.79 : 2,468.05 = 1,186.47 : x
  2. Step 2: Convert to fraction form
    1,647.79/2,468.05 = 1,186.47/x
  3. Step 3: Cross multiply
    1,647.79x = 2,468.05 × 1,186.47
  4. Step 4: Simplify right side
    1,647.79x = 2,928,267.28
  5. Step 5: Solve for x
    x = 2,928,267.28/1,647.79
  6. Step 6: Final answer
    x = 1,777.09

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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.