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Finding the Fourth Proportional to 2,373.87, 3,561.48 and 814.08

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Solution

The fourth proportional to 2,373.87, 3,561.48 and 814.08 is: 1,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,373.87 : 3,561.48 = 814.08 : x
  2. Step 2: Convert to fraction form
    2,373.87/3,561.48 = 814.08/x
  3. Step 3: Cross multiply
    2,373.87x = 3,561.48 × 814.08
  4. Step 4: Simplify right side
    2,373.87x = 2,899,329.64
  5. Step 5: Solve for x
    x = 2,899,329.64/2,373.87
  6. Step 6: Final answer
    x = 1,221.35

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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.