Home / 1,424.14-2,136.06-384.08

Finding the Fourth Proportional to 1,424.14, 2,136.06 and 384.08

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Solution

The fourth proportional to 1,424.14, 2,136.06 and 384.08 is: 576.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.14 : 2,136.06 = 384.08 : x
  2. Step 2: Convert to fraction form
    1,424.14/2,136.06 = 384.08/x
  3. Step 3: Cross multiply
    1,424.14x = 2,136.06 × 384.08
  4. Step 4: Simplify right side
    1,424.14x = 820,413.25
  5. Step 5: Solve for x
    x = 820,413.25/1,424.14
  6. Step 6: Final answer
    x = 576.08

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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.