Home / 7,360.40-11,036.80-2,165.60

Finding the Fourth Proportional to 7,360.40, 11,036.80 and 2,165.60

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Solution

The fourth proportional to 7,360.40, 11,036.80 and 2,165.60 is: 3,247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,360.40 : 11,036.80 = 2,165.60 : x
  2. Step 2: Convert to fraction form
    7,360.40/11,036.80 = 2,165.60/x
  3. Step 3: Cross multiply
    7,360.40x = 11,036.80 × 2,165.60
  4. Step 4: Simplify right side
    7,360.40x = 23,901,294.08
  5. Step 5: Solve for x
    x = 23,901,294.08/7,360.40
  6. Step 6: Final answer
    x = 3,247.28

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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.