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Finding the Fourth Proportional to 3,518.87, 5,286.51 and 3,026.79

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Solution

The fourth proportional to 3,518.87, 5,286.51 and 3,026.79 is: 4,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.87 : 5,286.51 = 3,026.79 : x
  2. Step 2: Convert to fraction form
    3,518.87/5,286.51 = 3,026.79/x
  3. Step 3: Cross multiply
    3,518.87x = 5,286.51 × 3,026.79
  4. Step 4: Simplify right side
    3,518.87x = 16,001,155.60
  5. Step 5: Solve for x
    x = 16,001,155.60/3,518.87
  6. Step 6: Final answer
    x = 4,547.25

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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.