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Finding the Fourth Proportional to 1,180.62, 1,622.42 and 1,126.42

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Solution

The fourth proportional to 1,180.62, 1,622.42 and 1,126.42 is: 1,547.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.62 : 1,622.42 = 1,126.42 : x
  2. Step 2: Convert to fraction form
    1,180.62/1,622.42 = 1,126.42/x
  3. Step 3: Cross multiply
    1,180.62x = 1,622.42 × 1,126.42
  4. Step 4: Simplify right side
    1,180.62x = 1,827,516.65
  5. Step 5: Solve for x
    x = 1,827,516.65/1,180.62
  6. Step 6: Final answer
    x = 1,547.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.