Home / 1,424.18-2,136.24-369.98

Finding the Fourth Proportional to 1,424.18, 2,136.24 and 369.98

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Solution

The fourth proportional to 1,424.18, 2,136.24 and 369.98 is: 554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.18 : 2,136.24 = 369.98 : x
  2. Step 2: Convert to fraction form
    1,424.18/2,136.24 = 369.98/x
  3. Step 3: Cross multiply
    1,424.18x = 2,136.24 × 369.98
  4. Step 4: Simplify right side
    1,424.18x = 790,363.40
  5. Step 5: Solve for x
    x = 790,363.40/1,424.18
  6. Step 6: Final answer
    x = 554.96

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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.