Home / 3,465.16-5,198.50-999.78

Finding the Fourth Proportional to 3,465.16, 5,198.50 and 999.78

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Solution

The fourth proportional to 3,465.16, 5,198.50 and 999.78 is: 1,499.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.16 : 5,198.50 = 999.78 : x
  2. Step 2: Convert to fraction form
    3,465.16/5,198.50 = 999.78/x
  3. Step 3: Cross multiply
    3,465.16x = 5,198.50 × 999.78
  4. Step 4: Simplify right side
    3,465.16x = 5,197,356.33
  5. Step 5: Solve for x
    x = 5,197,356.33/3,465.16
  6. Step 6: Final answer
    x = 1,499.89

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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.