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Finding the Fourth Proportional to 3,894.80, 5,866.76 and 3,550.32

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Solution

The fourth proportional to 3,894.80, 5,866.76 and 3,550.32 is: 5,347.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.80 : 5,866.76 = 3,550.32 : x
  2. Step 2: Convert to fraction form
    3,894.80/5,866.76 = 3,550.32/x
  3. Step 3: Cross multiply
    3,894.80x = 5,866.76 × 3,550.32
  4. Step 4: Simplify right side
    3,894.80x = 20,828,875.36
  5. Step 5: Solve for x
    x = 20,828,875.36/3,894.80
  6. Step 6: Final answer
    x = 5,347.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.