Home / 1,907.28-2,860.92-1,805.40

Finding the Fourth Proportional to 1,907.28, 2,860.92 and 1,805.40

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Solution

The fourth proportional to 1,907.28, 2,860.92 and 1,805.40 is: 2,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.28 : 2,860.92 = 1,805.40 : x
  2. Step 2: Convert to fraction form
    1,907.28/2,860.92 = 1,805.40/x
  3. Step 3: Cross multiply
    1,907.28x = 2,860.92 × 1,805.40
  4. Step 4: Simplify right side
    1,907.28x = 5,165,104.97
  5. Step 5: Solve for x
    x = 5,165,104.97/1,907.28
  6. Step 6: Final answer
    x = 2,708.10

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1.5x scale

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.