Home / 1,725.40-2,382.75-1,097.11

Finding the Fourth Proportional to 1,725.40, 2,382.75 and 1,097.11

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Solution

The fourth proportional to 1,725.40, 2,382.75 and 1,097.11 is: 1,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.40 : 2,382.75 = 1,097.11 : x
  2. Step 2: Convert to fraction form
    1,725.40/2,382.75 = 1,097.11/x
  3. Step 3: Cross multiply
    1,725.40x = 2,382.75 × 1,097.11
  4. Step 4: Simplify right side
    1,725.40x = 2,614,138.85
  5. Step 5: Solve for x
    x = 2,614,138.85/1,725.40
  6. Step 6: Final answer
    x = 1,515.09

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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.