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Finding the Fourth Proportional to 2,909.93, 4,363.07 and 1,816.43

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Solution

The fourth proportional to 2,909.93, 4,363.07 and 1,816.43 is: 2,723.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.93 : 4,363.07 = 1,816.43 : x
  2. Step 2: Convert to fraction form
    2,909.93/4,363.07 = 1,816.43/x
  3. Step 3: Cross multiply
    2,909.93x = 4,363.07 × 1,816.43
  4. Step 4: Simplify right side
    2,909.93x = 7,925,180.34
  5. Step 5: Solve for x
    x = 7,925,180.34/2,909.93
  6. Step 6: Final answer
    x = 2,723.50

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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.