Home / 4,815.14-6,645.20-2,690.68

Finding the Fourth Proportional to 4,815.14, 6,645.20 and 2,690.68

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Solution

The fourth proportional to 4,815.14, 6,645.20 and 2,690.68 is: 3,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.14 : 6,645.20 = 2,690.68 : x
  2. Step 2: Convert to fraction form
    4,815.14/6,645.20 = 2,690.68/x
  3. Step 3: Cross multiply
    4,815.14x = 6,645.20 × 2,690.68
  4. Step 4: Simplify right side
    4,815.14x = 17,880,106.74
  5. Step 5: Solve for x
    x = 17,880,106.74/4,815.14
  6. Step 6: Final answer
    x = 3,713.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.