Home / 5,424.88-8,136.78-3,681.07

Finding the Fourth Proportional to 5,424.88, 8,136.78 and 3,681.07

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Solution

The fourth proportional to 5,424.88, 8,136.78 and 3,681.07 is: 5,521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.88 : 8,136.78 = 3,681.07 : x
  2. Step 2: Convert to fraction form
    5,424.88/8,136.78 = 3,681.07/x
  3. Step 3: Cross multiply
    5,424.88x = 8,136.78 × 3,681.07
  4. Step 4: Simplify right side
    5,424.88x = 29,952,056.75
  5. Step 5: Solve for x
    x = 29,952,056.75/5,424.88
  6. Step 6: Final answer
    x = 5,521.24

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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.