Home / 1,909.67-2,633.19-1,349.15

Finding the Fourth Proportional to 1,909.67, 2,633.19 and 1,349.15

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Solution

The fourth proportional to 1,909.67, 2,633.19 and 1,349.15 is: 1,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.67 : 2,633.19 = 1,349.15 : x
  2. Step 2: Convert to fraction form
    1,909.67/2,633.19 = 1,349.15/x
  3. Step 3: Cross multiply
    1,909.67x = 2,633.19 × 1,349.15
  4. Step 4: Simplify right side
    1,909.67x = 3,552,568.29
  5. Step 5: Solve for x
    x = 3,552,568.29/1,909.67
  6. Step 6: Final answer
    x = 1,860.30

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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.