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Finding the Fourth Proportional to 2,393.78, 3,590.54 and 833.30

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Solution

The fourth proportional to 2,393.78, 3,590.54 and 833.30 is: 1,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.78 : 3,590.54 = 833.30 : x
  2. Step 2: Convert to fraction form
    2,393.78/3,590.54 = 833.30/x
  3. Step 3: Cross multiply
    2,393.78x = 3,590.54 × 833.30
  4. Step 4: Simplify right side
    2,393.78x = 2,991,981.11
  5. Step 5: Solve for x
    x = 2,991,981.11/2,393.78
  6. Step 6: Final answer
    x = 1,249.90

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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.