Home / 7,136.40-10,704.56-1,942.26

Finding the Fourth Proportional to 7,136.40, 10,704.56 and 1,942.26

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Solution

The fourth proportional to 7,136.40, 10,704.56 and 1,942.26 is: 2,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.40 : 10,704.56 = 1,942.26 : x
  2. Step 2: Convert to fraction form
    7,136.40/10,704.56 = 1,942.26/x
  3. Step 3: Cross multiply
    7,136.40x = 10,704.56 × 1,942.26
  4. Step 4: Simplify right side
    7,136.40x = 20,791,038.71
  5. Step 5: Solve for x
    x = 20,791,038.71/7,136.40
  6. Step 6: Final answer
    x = 2,913.38

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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.