Home / 2,690.51-4,032.42-1,909.27

Finding the Fourth Proportional to 2,690.51, 4,032.42 and 1,909.27

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Solution

The fourth proportional to 2,690.51, 4,032.42 and 1,909.27 is: 2,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.51 : 4,032.42 = 1,909.27 : x
  2. Step 2: Convert to fraction form
    2,690.51/4,032.42 = 1,909.27/x
  3. Step 3: Cross multiply
    2,690.51x = 4,032.42 × 1,909.27
  4. Step 4: Simplify right side
    2,690.51x = 7,698,958.37
  5. Step 5: Solve for x
    x = 7,698,958.37/2,690.51
  6. Step 6: Final answer
    x = 2,861.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.