Home / 2,455.08-3,387.78-1,669.80

Finding the Fourth Proportional to 2,455.08, 3,387.78 and 1,669.80

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Solution

The fourth proportional to 2,455.08, 3,387.78 and 1,669.80 is: 2,304.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.08 : 3,387.78 = 1,669.80 : x
  2. Step 2: Convert to fraction form
    2,455.08/3,387.78 = 1,669.80/x
  3. Step 3: Cross multiply
    2,455.08x = 3,387.78 × 1,669.80
  4. Step 4: Simplify right side
    2,455.08x = 5,656,915.04
  5. Step 5: Solve for x
    x = 5,656,915.04/2,455.08
  6. Step 6: Final answer
    x = 2,304.17

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1.5x scale

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.