Home / 1,176.38-1,631.16-1,137.35

Finding the Fourth Proportional to 1,176.38, 1,631.16 and 1,137.35

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Solution

The fourth proportional to 1,176.38, 1,631.16 and 1,137.35 is: 1,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.38 : 1,631.16 = 1,137.35 : x
  2. Step 2: Convert to fraction form
    1,176.38/1,631.16 = 1,137.35/x
  3. Step 3: Cross multiply
    1,176.38x = 1,631.16 × 1,137.35
  4. Step 4: Simplify right side
    1,176.38x = 1,855,203.90
  5. Step 5: Solve for x
    x = 1,855,203.90/1,176.38
  6. Step 6: Final answer
    x = 1,577.05

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.