Home / 2,130.66-3,193.08-1,578.36

Finding the Fourth Proportional to 2,130.66, 3,193.08 and 1,578.36

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Solution

The fourth proportional to 2,130.66, 3,193.08 and 1,578.36 is: 2,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.66 : 3,193.08 = 1,578.36 : x
  2. Step 2: Convert to fraction form
    2,130.66/3,193.08 = 1,578.36/x
  3. Step 3: Cross multiply
    2,130.66x = 3,193.08 × 1,578.36
  4. Step 4: Simplify right side
    2,130.66x = 5,039,829.75
  5. Step 5: Solve for x
    x = 5,039,829.75/2,130.66
  6. Step 6: Final answer
    x = 2,365.38

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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.