Home / 2,640.16-3,964.14-1,472.45

Finding the Fourth Proportional to 2,640.16, 3,964.14 and 1,472.45

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Solution

The fourth proportional to 2,640.16, 3,964.14 and 1,472.45 is: 2,210.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.16 : 3,964.14 = 1,472.45 : x
  2. Step 2: Convert to fraction form
    2,640.16/3,964.14 = 1,472.45/x
  3. Step 3: Cross multiply
    2,640.16x = 3,964.14 × 1,472.45
  4. Step 4: Simplify right side
    2,640.16x = 5,836,978.12
  5. Step 5: Solve for x
    x = 5,836,978.12/2,640.16
  6. Step 6: Final answer
    x = 2,210.84

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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.