Home / 1,909.36-2,634.84-1,070.05

Finding the Fourth Proportional to 1,909.36, 2,634.84 and 1,070.05

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Solution

The fourth proportional to 1,909.36, 2,634.84 and 1,070.05 is: 1,476.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.36 : 2,634.84 = 1,070.05 : x
  2. Step 2: Convert to fraction form
    1,909.36/2,634.84 = 1,070.05/x
  3. Step 3: Cross multiply
    1,909.36x = 2,634.84 × 1,070.05
  4. Step 4: Simplify right side
    1,909.36x = 2,819,410.54
  5. Step 5: Solve for x
    x = 2,819,410.54/1,909.36
  6. Step 6: Final answer
    x = 1,476.63

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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.