Home / 2,712.48-4,068.28-1,930.12

Finding the Fourth Proportional to 2,712.48, 4,068.28 and 1,930.12

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Solution

The fourth proportional to 2,712.48, 4,068.28 and 1,930.12 is: 2,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.48 : 4,068.28 = 1,930.12 : x
  2. Step 2: Convert to fraction form
    2,712.48/4,068.28 = 1,930.12/x
  3. Step 3: Cross multiply
    2,712.48x = 4,068.28 × 1,930.12
  4. Step 4: Simplify right side
    2,712.48x = 7,852,268.59
  5. Step 5: Solve for x
    x = 7,852,268.59/2,712.48
  6. Step 6: Final answer
    x = 2,894.87

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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.