Home / 3,118.09-4,677.14-1,818.65

Finding the Fourth Proportional to 3,118.09, 4,677.14 and 1,818.65

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Solution

The fourth proportional to 3,118.09, 4,677.14 and 1,818.65 is: 2,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.09 : 4,677.14 = 1,818.65 : x
  2. Step 2: Convert to fraction form
    3,118.09/4,677.14 = 1,818.65/x
  3. Step 3: Cross multiply
    3,118.09x = 4,677.14 × 1,818.65
  4. Step 4: Simplify right side
    3,118.09x = 8,506,080.66
  5. Step 5: Solve for x
    x = 8,506,080.66/3,118.09
  6. Step 6: Final answer
    x = 2,727.98

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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.