Home / 1,424.06-2,136.15-694.25

Finding the Fourth Proportional to 1,424.06, 2,136.15 and 694.25

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Solution

The fourth proportional to 1,424.06, 2,136.15 and 694.25 is: 1,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.06 : 2,136.15 = 694.25 : x
  2. Step 2: Convert to fraction form
    1,424.06/2,136.15 = 694.25/x
  3. Step 3: Cross multiply
    1,424.06x = 2,136.15 × 694.25
  4. Step 4: Simplify right side
    1,424.06x = 1,483,022.14
  5. Step 5: Solve for x
    x = 1,483,022.14/1,424.06
  6. Step 6: Final answer
    x = 1,041.40

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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.