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Finding the Fourth Proportional to 7,136.40, 10,701.40 and 2,752.40

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Solution

The fourth proportional to 7,136.40, 10,701.40 and 2,752.40 is: 4,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.40 : 10,701.40 = 2,752.40 : x
  2. Step 2: Convert to fraction form
    7,136.40/10,701.40 = 2,752.40/x
  3. Step 3: Cross multiply
    7,136.40x = 10,701.40 × 2,752.40
  4. Step 4: Simplify right side
    7,136.40x = 29,454,533.36
  5. Step 5: Solve for x
    x = 29,454,533.36/7,136.40
  6. Step 6: Final answer
    x = 4,127.37

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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.