Home / 3,136.23-4,703.56-1,287.87

Finding the Fourth Proportional to 3,136.23, 4,703.56 and 1,287.87

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Solution

The fourth proportional to 3,136.23, 4,703.56 and 1,287.87 is: 1,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.23 : 4,703.56 = 1,287.87 : x
  2. Step 2: Convert to fraction form
    3,136.23/4,703.56 = 1,287.87/x
  3. Step 3: Cross multiply
    3,136.23x = 4,703.56 × 1,287.87
  4. Step 4: Simplify right side
    3,136.23x = 6,057,573.82
  5. Step 5: Solve for x
    x = 6,057,573.82/3,136.23
  6. Step 6: Final answer
    x = 1,931.48

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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.