Home / 3,640.08-5,460.20-1,043.20

Finding the Fourth Proportional to 3,640.08, 5,460.20 and 1,043.20

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Solution

The fourth proportional to 3,640.08, 5,460.20 and 1,043.20 is: 1,564.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.08 : 5,460.20 = 1,043.20 : x
  2. Step 2: Convert to fraction form
    3,640.08/5,460.20 = 1,043.20/x
  3. Step 3: Cross multiply
    3,640.08x = 5,460.20 × 1,043.20
  4. Step 4: Simplify right side
    3,640.08x = 5,696,080.64
  5. Step 5: Solve for x
    x = 5,696,080.64/3,640.08
  6. Step 6: Final answer
    x = 1,564.82

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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.