Home / 3,115.40-4,673.96-1,360.08

Finding the Fourth Proportional to 3,115.40, 4,673.96 and 1,360.08

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Solution

The fourth proportional to 3,115.40, 4,673.96 and 1,360.08 is: 2,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.40 : 4,673.96 = 1,360.08 : x
  2. Step 2: Convert to fraction form
    3,115.40/4,673.96 = 1,360.08/x
  3. Step 3: Cross multiply
    3,115.40x = 4,673.96 × 1,360.08
  4. Step 4: Simplify right side
    3,115.40x = 6,356,952.72
  5. Step 5: Solve for x
    x = 6,356,952.72/3,115.40
  6. Step 6: Final answer
    x = 2,040.50

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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.