Home / 3,088.78-4,262.56-1,691.50

Finding the Fourth Proportional to 3,088.78, 4,262.56 and 1,691.50

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Solution

The fourth proportional to 3,088.78, 4,262.56 and 1,691.50 is: 2,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.78 : 4,262.56 = 1,691.50 : x
  2. Step 2: Convert to fraction form
    3,088.78/4,262.56 = 1,691.50/x
  3. Step 3: Cross multiply
    3,088.78x = 4,262.56 × 1,691.50
  4. Step 4: Simplify right side
    3,088.78x = 7,210,120.24
  5. Step 5: Solve for x
    x = 7,210,120.24/3,088.78
  6. Step 6: Final answer
    x = 2,334.29

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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.