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Finding the Fourth Proportional to 2,909.94, 4,015.62 and 1,651.11

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Solution

The fourth proportional to 2,909.94, 4,015.62 and 1,651.11 is: 2,278.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.94 : 4,015.62 = 1,651.11 : x
  2. Step 2: Convert to fraction form
    2,909.94/4,015.62 = 1,651.11/x
  3. Step 3: Cross multiply
    2,909.94x = 4,015.62 × 1,651.11
  4. Step 4: Simplify right side
    2,909.94x = 6,630,230.34
  5. Step 5: Solve for x
    x = 6,630,230.34/2,909.94
  6. Step 6: Final answer
    x = 2,278.48

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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.