Home / 3,115.64-4,673.72-1,360.68

Finding the Fourth Proportional to 3,115.64, 4,673.72 and 1,360.68

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Solution

The fourth proportional to 3,115.64, 4,673.72 and 1,360.68 is: 2,041.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.64 : 4,673.72 = 1,360.68 : x
  2. Step 2: Convert to fraction form
    3,115.64/4,673.72 = 1,360.68/x
  3. Step 3: Cross multiply
    3,115.64x = 4,673.72 × 1,360.68
  4. Step 4: Simplify right side
    3,115.64x = 6,359,437.33
  5. Step 5: Solve for x
    x = 6,359,437.33/3,115.64
  6. Step 6: Final answer
    x = 2,041.13

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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.