Home / 1,909.66-2,635.25-1,070.45

Finding the Fourth Proportional to 1,909.66, 2,635.25 and 1,070.45

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Solution

The fourth proportional to 1,909.66, 2,635.25 and 1,070.45 is: 1,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.66 : 2,635.25 = 1,070.45 : x
  2. Step 2: Convert to fraction form
    1,909.66/2,635.25 = 1,070.45/x
  3. Step 3: Cross multiply
    1,909.66x = 2,635.25 × 1,070.45
  4. Step 4: Simplify right side
    1,909.66x = 2,820,903.36
  5. Step 5: Solve for x
    x = 2,820,903.36/1,909.66
  6. Step 6: Final answer
    x = 1,477.18

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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.