Home / 1,400.06-2,100.26-578.23

Finding the Fourth Proportional to 1,400.06, 2,100.26 and 578.23

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Solution

The fourth proportional to 1,400.06, 2,100.26 and 578.23 is: 867.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.06 : 2,100.26 = 578.23 : x
  2. Step 2: Convert to fraction form
    1,400.06/2,100.26 = 578.23/x
  3. Step 3: Cross multiply
    1,400.06x = 2,100.26 × 578.23
  4. Step 4: Simplify right side
    1,400.06x = 1,214,429.53
  5. Step 5: Solve for x
    x = 1,214,429.53/1,400.06
  6. Step 6: Final answer
    x = 867.41

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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.