Home / 1,908.04-2,632.50-1,287.16

Finding the Fourth Proportional to 1,908.04, 2,632.50 and 1,287.16

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Solution

The fourth proportional to 1,908.04, 2,632.50 and 1,287.16 is: 1,775.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.04 : 2,632.50 = 1,287.16 : x
  2. Step 2: Convert to fraction form
    1,908.04/2,632.50 = 1,287.16/x
  3. Step 3: Cross multiply
    1,908.04x = 2,632.50 × 1,287.16
  4. Step 4: Simplify right side
    1,908.04x = 3,388,448.70
  5. Step 5: Solve for x
    x = 3,388,448.70/1,908.04
  6. Step 6: Final answer
    x = 1,775.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.