Home / 2,130.32-3,192.52-1,193.75

Finding the Fourth Proportional to 2,130.32, 3,192.52 and 1,193.75

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Solution

The fourth proportional to 2,130.32, 3,192.52 and 1,193.75 is: 1,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.32 : 3,192.52 = 1,193.75 : x
  2. Step 2: Convert to fraction form
    2,130.32/3,192.52 = 1,193.75/x
  3. Step 3: Cross multiply
    2,130.32x = 3,192.52 × 1,193.75
  4. Step 4: Simplify right side
    2,130.32x = 3,811,070.75
  5. Step 5: Solve for x
    x = 3,811,070.75/2,130.32
  6. Step 6: Final answer
    x = 1,788.97

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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.