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Finding the Fourth Proportional to 2,618.47, 3,927.71 and 1,136.46

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Solution

The fourth proportional to 2,618.47, 3,927.71 and 1,136.46 is: 1,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.47 : 3,927.71 = 1,136.46 : x
  2. Step 2: Convert to fraction form
    2,618.47/3,927.71 = 1,136.46/x
  3. Step 3: Cross multiply
    2,618.47x = 3,927.71 × 1,136.46
  4. Step 4: Simplify right side
    2,618.47x = 4,463,685.31
  5. Step 5: Solve for x
    x = 4,463,685.31/2,618.47
  6. Step 6: Final answer
    x = 1,704.69

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1.5x scale

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.