Home / 1,154-1,739.66-1,136.72

Finding the Fourth Proportional to 1,154, 1,739.66 and 1,136.72

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Solution

The fourth proportional to 1,154, 1,739.66 and 1,136.72 is: 1,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154 : 1,739.66 = 1,136.72 : x
  2. Step 2: Convert to fraction form
    1,154/1,739.66 = 1,136.72/x
  3. Step 3: Cross multiply
    1,154x = 1,739.66 × 1,136.72
  4. Step 4: Simplify right side
    1,154x = 1,977,506.32
  5. Step 5: Solve for x
    x = 1,977,506.32/1,154
  6. Step 6: Final answer
    x = 1,713.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.