Home / 1,136.24-1,568.50-664.04

Finding the Fourth Proportional to 1,136.24, 1,568.50 and 664.04

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Solution

The fourth proportional to 1,136.24, 1,568.50 and 664.04 is: 916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.24 : 1,568.50 = 664.04 : x
  2. Step 2: Convert to fraction form
    1,136.24/1,568.50 = 664.04/x
  3. Step 3: Cross multiply
    1,136.24x = 1,568.50 × 664.04
  4. Step 4: Simplify right side
    1,136.24x = 1,041,546.74
  5. Step 5: Solve for x
    x = 1,041,546.74/1,136.24
  6. Step 6: Final answer
    x = 916.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.