Home / 5,618.81-8,428.22-1,514.81

Finding the Fourth Proportional to 5,618.81, 8,428.22 and 1,514.81

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Solution

The fourth proportional to 5,618.81, 8,428.22 and 1,514.81 is: 2,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.81 : 8,428.22 = 1,514.81 : x
  2. Step 2: Convert to fraction form
    5,618.81/8,428.22 = 1,514.81/x
  3. Step 3: Cross multiply
    5,618.81x = 8,428.22 × 1,514.81
  4. Step 4: Simplify right side
    5,618.81x = 12,767,171.12
  5. Step 5: Solve for x
    x = 12,767,171.12/5,618.81
  6. Step 6: Final answer
    x = 2,272.22

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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.