Home / 1,634.36-2,253.54-1,240.70

Finding the Fourth Proportional to 1,634.36, 2,253.54 and 1,240.70

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Solution

The fourth proportional to 1,634.36, 2,253.54 and 1,240.70 is: 1,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.36 : 2,253.54 = 1,240.70 : x
  2. Step 2: Convert to fraction form
    1,634.36/2,253.54 = 1,240.70/x
  3. Step 3: Cross multiply
    1,634.36x = 2,253.54 × 1,240.70
  4. Step 4: Simplify right side
    1,634.36x = 2,795,967.08
  5. Step 5: Solve for x
    x = 2,795,967.08/1,634.36
  6. Step 6: Final answer
    x = 1,710.74

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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.