Home / 3,347.30-5,021.32-1,155.78

Finding the Fourth Proportional to 3,347.30, 5,021.32 and 1,155.78

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Solution

The fourth proportional to 3,347.30, 5,021.32 and 1,155.78 is: 1,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.30 : 5,021.32 = 1,155.78 : x
  2. Step 2: Convert to fraction form
    3,347.30/5,021.32 = 1,155.78/x
  3. Step 3: Cross multiply
    3,347.30x = 5,021.32 × 1,155.78
  4. Step 4: Simplify right side
    3,347.30x = 5,803,541.23
  5. Step 5: Solve for x
    x = 5,803,541.23/3,347.30
  6. Step 6: Final answer
    x = 1,733.80

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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.