Home / 1,619.49-2,426.45-1,275.03

Finding the Fourth Proportional to 1,619.49, 2,426.45 and 1,275.03

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Solution

The fourth proportional to 1,619.49, 2,426.45 and 1,275.03 is: 1,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.49 : 2,426.45 = 1,275.03 : x
  2. Step 2: Convert to fraction form
    1,619.49/2,426.45 = 1,275.03/x
  3. Step 3: Cross multiply
    1,619.49x = 2,426.45 × 1,275.03
  4. Step 4: Simplify right side
    1,619.49x = 3,093,790.17
  5. Step 5: Solve for x
    x = 3,093,790.17/1,619.49
  6. Step 6: Final answer
    x = 1,910.35

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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.