Home / 1,909.34-2,634.86-1,070.04

Finding the Fourth Proportional to 1,909.34, 2,634.86 and 1,070.04

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Solution

The fourth proportional to 1,909.34, 2,634.86 and 1,070.04 is: 1,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.34 : 2,634.86 = 1,070.04 : x
  2. Step 2: Convert to fraction form
    1,909.34/2,634.86 = 1,070.04/x
  3. Step 3: Cross multiply
    1,909.34x = 2,634.86 × 1,070.04
  4. Step 4: Simplify right side
    1,909.34x = 2,819,408.27
  5. Step 5: Solve for x
    x = 2,819,408.27/1,909.34
  6. Step 6: Final answer
    x = 1,476.64

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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.