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Finding the Fourth Proportional to 3,465.83, 5,198.76 and 868.77

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Solution

The fourth proportional to 3,465.83, 5,198.76 and 868.77 is: 1,303.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.83 : 5,198.76 = 868.77 : x
  2. Step 2: Convert to fraction form
    3,465.83/5,198.76 = 868.77/x
  3. Step 3: Cross multiply
    3,465.83x = 5,198.76 × 868.77
  4. Step 4: Simplify right side
    3,465.83x = 4,516,526.73
  5. Step 5: Solve for x
    x = 4,516,526.73/3,465.83
  6. Step 6: Final answer
    x = 1,303.16

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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.