Home / 3,118.04-4,677.24-809.56

Finding the Fourth Proportional to 3,118.04, 4,677.24 and 809.56

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Solution

The fourth proportional to 3,118.04, 4,677.24 and 809.56 is: 1,214.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.04 : 4,677.24 = 809.56 : x
  2. Step 2: Convert to fraction form
    3,118.04/4,677.24 = 809.56/x
  3. Step 3: Cross multiply
    3,118.04x = 4,677.24 × 809.56
  4. Step 4: Simplify right side
    3,118.04x = 3,786,506.41
  5. Step 5: Solve for x
    x = 3,786,506.41/3,118.04
  6. Step 6: Final answer
    x = 1,214.39

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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.