Home / 2,125.48-2,933.30-1,229.40

Finding the Fourth Proportional to 2,125.48, 2,933.30 and 1,229.40

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Solution

The fourth proportional to 2,125.48, 2,933.30 and 1,229.40 is: 1,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.48 : 2,933.30 = 1,229.40 : x
  2. Step 2: Convert to fraction form
    2,125.48/2,933.30 = 1,229.40/x
  3. Step 3: Cross multiply
    2,125.48x = 2,933.30 × 1,229.40
  4. Step 4: Simplify right side
    2,125.48x = 3,606,199.02
  5. Step 5: Solve for x
    x = 3,606,199.02/2,125.48
  6. Step 6: Final answer
    x = 1,696.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.